Wontrop Klauser, Bagne switch to GM road car roles

General Motors is rotating its sports car management team, with longtime GM Sports Car Racing program manager Laura Wontrop Klauser and Corvette Z06 GT3.R program manager Christie Bagne moving back to the production side of the company. In a …

General Motors is rotating its sports car management team, with longtime GM Sports Car Racing program manager Laura Wontrop Klauser and Corvette Z06 GT3.R program manager Christie Bagne moving back to the production side of the company.

In a statement on the move, GM stated that, “Motorsports is a platform to hone engineering and leadership skills in a fast-paced highly competitive race environment. Rotating team members back into production and corporate programs is part of our core ‘why we race’ mission. Having experience in motorsports programs helps to enrich our team members’ careers and make GM a stronger company.”

At the conclusion of the 2024 season, Klauser will join the Global Hardware Systems and Integration Team as Engineering Group Leader. Concurrently, Bagne will transition to Corporate Strategy as a Senior Analyst. The final race for both will be this weekend’s World Endurance Championship finale in Bahrain.

Keely Bosn, currently Future Tech & Mobility Planning Manager in the Competitor Intelligence, Technology and Mobility Planning organization at GM, will join GM Motorsports as the Cadillac Racing Program Manager. Jessica Dane, currently the Motorsports Integration Manager in GM Motorsports, will become the Corvette Racing Program Manager for all Corvette GT3 programs.

Klauser started in the motorsports side of GM in 2016 as Cadillac was fielding the ATS-V.R in World Challenge before the Cadillac DPi program came online, and helped launch the Camaro GT4.R. She became sports car program manager in 2021, spearheading Cadillac’s LMDh program as well as the Corvette Z06 GT3.R. Cadillac took the driver, team and manufacturers titles in the IMSA WeatherTech SportsCar Championship GTP category last year, across both the full-season championship and the Michelin Endurance Cup.

Bagne moved from system capability engineer to assistant sports car program manager in 2021, assuming the role of Corvette Z06 GT3.R Program in January 2023 as GM was about to release its first customer GT3 car. The Z06 GT3.R found victory lane in both IMSA GTD PRO and Fanatec GT World Challenge America in its inaugural season, as well as carried Orey Fidani to the Bob Akin Award in the GTD category.

DXDT to become second Corvette team in IMSA GTD for 2025

Longtime Fanatec GT World Challenge America competitor DXDT Racing is joining the IMSA WeatherTech SportsCar Championship GTD class in 2025. The team will continue its relationship with Chevrolet and Corvette as part of the customer racing program, …

Longtime Fanatec GT World Challenge America competitor DXDT Racing is joining the IMSA WeatherTech SportsCar Championship GTD class in 2025. The team will continue its relationship with Chevrolet and Corvette as part of the customer racing program, campaigning the No. 36 Chevrolet Corvette Z06 GT3.R in a full-season effort.

Team owner David Askew has long desired to take on endurance racing, and the team has been positioning itself for such a campaign, including becoming one of the first customer teams to campaign the Z06 GT3.R and recently bringing on driver Bryan Sellers as program manager.

“I’m really excited to take what is a big step for DXDT to compete in the IMSA WeatherTech SportsCar Championship in GTD next year,” Askew said. “I began racing and working on building this team with the idea of eventually getting to IMSA, and everything that I’ve been doing over the past 10 years has been designed to help me achieve that goal.

“Erin Gahagan as the team manager has been instrumental in helping make this happen, and with the addition of Bryan Sellers to our front office, I think that we now have the right footing to take this step.”

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DXDT won every race it entered in the GT World Challenge America Pro category in 2024 with Alec Udell and Tommy Milner driving, up until the Indy 8 Hour – eight in all – and claimed the first worldwide win for the Corvette Z06 GT3.R. Sellers and Bryson Morris also took a pair of victories in the Pro-Am category.

“The relationship that we’ve been building with GM and Pratt Miller is a big part of what we needed to compete successfully at the highest level. What we’ve done this year has shown us that, together, we can fight for podiums and wins anywhere we go. I’m looking forward to many years racing in the IMSA WeatherTech series. This is a huge turning point for the team, I can’t wait to see what happens in the future,” Askew added.

Sellers, who has been driving for the team for several years before recently coming on board full-time as program manager, has won two championships in IMSA’s GTD class with Paul Miller Racing. While there wasn’t any indication that he would be part of the GTD driver lineup other than his statement that his new position would “allow him to continue driving at a high level,” Sellers echoed Askew’s comments.

“This is a very exciting time for everybody at DXDT Racing,” he said. “This is something that David [Askew] has aspired to do for quite a long time, and it’s something that we are all very much looking forward to getting the opportunity to do.

PrattMiller will have a stablemate to contend with at last. Jake Galstad/Motorsport Images

“We’ve been trying to put this program together for a couple of years now and have just been waiting for the right time and the right partnership. Being able to pair with GM and Pratt Miller has given us the ability to move into this new program with confidence in what we’re capable of, while also being able to rely on their capabilities as well. We’re all very excited about the opportunity to grow the program in one of the best sports car racing series in the world.”

DXDT will be joining Corvette’s storied history at the top level of American sports car racing. The marque, which began racing as a factory effort in 1999 before launching the customer program in 2024 with its first GT3 car, has won 14 IMSA manufacturer titles and captured 115 class victories in its 26 years.

“We are thrilled to see multiple Corvette Z06 GT3.Rs in IMSA’s GTD class for 2025,” said Mark Stielow, director, Chevrolet Motorsports Competition Engineering. “DXDT Racing proved itself this year in GT World Challenge with double-digit victories across the Pro and Pro-Am classes in the first year with our Corvette GT3. We’re proud to support David Askew and DXDT Racing as they continue pursuing their goals in becoming a well-established and successful team across multiple series in sports car racing.”

The team will announce its driver lineup for the GTD effort at a later date.

TF Sport eager to fly Corvette flag in Texas as it ramps up GT3 program

This weekend is a significant one for TF Sport, representing Corvette on home soil at Lone Star Le Mans in the WEC’s first race at Circuit of The Americas since 2020. Up front in the LMGT3 class, it’s a three-way battle for the lead of the …

This weekend is a significant one for TF Sport, representing Corvette on home soil at Lone Star Le Mans in the WEC’s first race at Circuit of The Americas since 2020.

Up front in the LMGT3 class, it’s a three-way battle for the lead of the championship, with Manthey’s pair of Porsche sitting 1-2 in the standings and the No. 92 from Pure Rxcing holding a commanding 25-point lead after another win in São Paulo.

But the expectation is that this weekend’s six-hour race in the Texas sunshine will not be a walk in the park for either of the two 911s, or the title-contending No. 31 WRT BMW M4 LMGT3. There’s a lack of circuit knowledge to content with, success ballast to factor in and tweaks to the Balance of Performance, which should see the field tighten. The COTA circuit has also been resurfaced over the summer, making the weekend’s action a challenge for everyone.

While the title battle is in full focus with the season beginning to come to a close, there are plenty of additional storylines to follow in the category. With each passing race meeting it’s becoming more hotly contested as the teams new to the WEC and those racing with new cars grow into the season. There’s a not-so-orderly queue of teams now desperate to score a first win before the end of the season.

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One of these is TF, which has endured a challenging run through the first five races. The transition from Aston Martin to Chevrolet and the task of competing with a brand-new GT3 car was never going to be a walk in the park, but Tom Ferrier’s crew have stuck at it, balancing the team’s flagship WEC GT3 program with its European Le Mans Series and Asian Le Mans Series commitments.

“Everyone comes here happy and energized after a bit of a summer break,” Ferrier told RACER. “It’s been really hard this year. We do the same programs every year it feels like, but this time Asian Le Mans rolled straight into the additional WEC race at Qatar and the Prologue, which meant four weeks back to back, and in ELMS there was a doubleheader last year, so it’s been the same program but with more races. We’ve also done a lot more testing this year to get our heads around the Corvette.”

So far this year TF has a best finish of seventh at Imola with the No. 81 car of Tom van Rompuy, Charlie Eastwood and Rui Andrade. But Ferrier doesn’t feel that reflects the team’s progress. Regardless, priority one for this season was simply learning the ins and outs of the new car and building its relationship with GM and Pratt Miller.

“We’re taking steps forward,” Ferrier said. “We haven’t shown that in actual results, but in Brazil, for instance, we should have been P4 had we not had a drive-through, and that would have been a good result for us. We just need a big result on the board, and we hope here is where things change. Too often we’ve had flawless runs in practice and qualifying, then had issues in the race.

“You always have high hopes, and when we started off with pole in Qatar we thought, ‘Wow!’But we said going in, getting a podium in year one would make us happy and we wanted to be fighting for that at the end of the year. We never thought we’d come straight in and have it easy.

“The whole torque sensor addition for the class (for BoP purposes), for instance, has been tricky and created a lot of work. We felt like we were playing catch-up early on because some factories in the class had a bit of a head start with it (through parallel Hypercar programs which have been utilizing the devices since the category’s debut).

“The virtual energy aspect has really changed the in-race strategy too, because the stints are shorter, we are doing more stops and in WEC tire allocation is limited, so you have to be careful and experiment. But we are in a good place now.”

The results haven’t yet fully shown it but TF Sport is confident its pair of Corvettes are making progress with the LMGT3 learning curve. Motorsport Images

Behind the scenes, work has been ongoing throughout the season to improve the Z06 LMGT3.R, whether that be via updates to improve the car’s software and reliability, or via shared experiences with other Corvette customer teams.

Corvette Racing has been tactical at this early stage, providing a restricted number of customer cars for a set of teams who all compete in separate championships. By not pitting customers against each other, it enables them to have an open relationship.

“We’ve been doing group Zoom calls with Pratt Miller, AWA and DXDT between races, where we share information and discuss any issues we have,” Ferrier said. “That’s been so helpful at this stage.

“It makes for a really nice product. Pratt Miller and GM do so much in the background and that’s made it very positive in year one because we have had reliability issues and blind spots. But we’ve been working through it, every weekend the car receives updates and that’s been massive.”

This is just the beginning of what TF Sport hopes will be a long-term, successful partnership with GM. Plans for an expansion of its effort with Corvette are afoot following the delivery of a third chassis in June ahead of Le Mans. This third car will not only act as a test chassis going forward, it will likely be used for race programs outside of the WEC.

For starters, Ferrier hopes to use it in the Asian Le Mans Series over the winter, so he can compete for an automatic invitation to the Le Mans 24 Hours via success in the GT3 class that would guarantee a third Corvette on the grid for the biggest race of the year. Taking it to the ELMS for the first time in 2025 is also a possibility.

“It would mean more learning on the Goodyear tires and the torque sensors if we take the car to ELMS, which would boost our WEC program,” Ferrier explained.

Could appearances in IMSA to bolster GM’s presence at the big Floridian endurance races be on the cards?

“I’d like to, but probably not next year as we are focused on getting the WEC program right first,” he said. “Never say never though!”

DXDT crew racks up another GTWC win at Road America

Saturday’s first race in the Fanatec GT World Challenge America powered by AWS championship saw intense battles, strategy gambles, and full course yellows come into play as the weather luckily cooperated during the 90-minute event. DXDT Racing’s …

Saturday’s first race in the Fanatec GT World Challenge America powered by AWS championship saw intense battles, strategy gambles, and full course yellows come into play as the weather luckily cooperated during the 90-minute event.

DXDT Racing’s Alec Udell and Tommy Milner displayed their prowess in the Pro class, adding another overall victory to their running tally. In Pro-Am, Justin Rothberg and Robby Foley overcame challenges and clawed their way to the top spot.

Pro

Contact on the first lap between Bill Auberlen in the No. 28 ST Racing BMW M4 GT3 and Madison Snow in the No. 99 Random Vandals Racing BMW M4 GT3 brought out a brief full course yellow, but the green flag running resumed shortly thereafter.

Udell, who started from pole position in the No. 63 DXDT Racing Chevrolet Corvette Z06 GT3.R, found himself in an intense battle for the lead with Luca Mars in the No. 93 Racers Edge Motorsports Acura NSX GT3 EVO22. After running nose-to-tail for the opening third of the race, Mars saw an opportunity to pull off an overtake in Canada Corner, sweeping into first place with one hour to go.

However, as the driver changes unfolded at the halfway mark, DXDT Racing’s Milner regained the track position advantage over the Racers Edge Motorsports’ Zach Veach, who ran into issues with the seat insert during the team’s pit stop.

A full course caution emerged just before the final 10 minutes of the race as Varun Choksey momentarily pulled his ST Racing machine off-track, bringing the field together again. The green flag running resumed for the final five minutes, with Veach challenging Milner with all his might on the restart. Despite the mounting pressure, the Corvette factory driver remained composed and fended off the attacks, going on to clinch DXDT Racing’s fifth consecutive win of the season.

Racers Edge Motorsports finished second overall to score their best result of the year thus far, with Elliott Skeer following closely behind in the No. 120 Wright Motorsports Porsche 992 GT3 R to claim the final podium position.

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“Everything went perfectly for us,” said Milner. “We had a huge lead in our class, but then the yellow flag bunched everyone back up. The other teams, especially the Acura and Porsche, were posting impressive lap times, and I thought, ‘Man, I can’t match that.’ I learned earlier this year that not preparing the tires properly before a restart can cost you, so I made sure to focus on that. Fortunately, I had just enough of a gap and managed to bring this Corvette home in first place again. It’s unbelievable!”

Pro-Am

The running order in the Pro-Am class changed drastically within the opening laps, as on-track drama unfolded almost immediately. The No. 08 DXDT Racing Chevrolet Corvette Z06 GT3.R was involved in a lap one incident, bringing Bryson Morris’ debut race in the series to an early end.

A number of teams took a gamble with the weather and started the race on wet tires, which ultimately resulted in them being forced to pit early to switch to slicks. This played perfectly into the hands of Phillip Ellis in the No. 91 Regulator Racing Mercedes-AMG GT3, as he made his way from last to fifth position overall within the opening ten minutes of the race.

Ellis was challenging the Pro class frontrunners before coming into pit lane to hand over his machine to teammate Jeff Burton, who retained the Pro-Am class lead as he returned to the track. Meanwhile, Foley was on the move in the No. 29 Turner Motorsport BMW M4 GT3, gradually inching closer to Burton lap after lap.

The gap between the two was reduced entirely as a full course yellow came out in the final laps, with Foley now breathing down Burton’s neck with only five minutes left on the clock. The green flag waved once again, and with that, Foley took the opportunity to move past Burton into the class lead, and went on to take the race one Pro-Am victory at Road America.

Burton momentarily ran off-track shortly after being overtaken, allowing Tom Sargent to move up to second place in the No. 32 GMG Racing Porsche 992 GT3 R, followed by Kyle Marcelli in the No. 92 MMG Porsche 992 GT3 R, earning a podium finish in the team’s championship debut.

“It was a crazy race,” Foley said. “I wasn’t really expecting that full course yellow at the end, and to be honest, I didn’t really want it, but it worked out. My stint was pretty easy in the dry, and we had a great BMW M4 GT3 under us today. Turner Motorsport provided us with a fantastic car, as they always do at this track. Thanks to LATICRETE, all of our partners, and of course, Justin and Will. We’re on a roll here, so let’s keep it going.”

“It’s been an amazing day,” echoed Rothberg, who won earlier in the day in GT America as well. “I’ve never had a two-for-two day, so I’m feeling really good. If you had told me when I was sitting back on the wall that I’d end up on the podium, I would have disagreed with you, but here we are.”

The Fanatec GT World Challenge America Powered by AWS field will return for race two on Sunday, August 18th at 2:15 p.m. CT.

RESULTS

Motown showdown for GTD PRO Corvettes and Mustangs

It’s been a while since a classic Ford vs. Chevy battle on the streets of Motown. Sure, such rivalries may be played out daily on Woodward Ave., but in a proper race, it’s been since the Ford GTs and Chevrolet Corvettes in the IMSA WeatherTech …

It’s been a while since a classic Ford vs. Chevy battle on the streets of Motown. Sure, such rivalries may be played out daily on Woodward Ave., but in a proper race, it’s been since the Ford GTs and Chevrolet Corvettes in the IMSA WeatherTech SportsCar Championship GTLM category faced off on Belle Isle. Before that it was Mustang vs. Camaro in Trans Am, and then back to the CART IndyCar days, with Ilmor Chevrolet and Ford Cosworth powerplants in the back of Reynards and Lolas fighting for Detroit glory.

With both companies headquartered in metropolitan Detroit, the rivalry takes center stage in this year when each have introduced new GT3 cars, the Mustang GT3 and the Corvette Z06 GT3.R. It’s going to be company pride on the line with many employees of both on hand to witness the battle.

The Ford Multimatic Motorsports drivers, along with Mustang GT3 Rs, toured several Ford campuses on Wednesday. And Dirk Mueller was very much looking forward to seeing the Ford GT with which he, Joey Hand and Sebastien Bourdais won the 24 Hours of Le Mans at The Henry Ford museum before getting down to business.

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“The pressure’s right there just because we want to be winning and be on pole and winning races coming to Detroit,” Mueller said. “Honestly, I just got goosebumps thinking about it. I get to be together with everybody. We are heading to the Henry Ford Museum. and I are going to see my winning Le Mans car, which is sitting there. We have a full day planned, being with the Ford family, being in the plant. So it’s it’s a huge day coming up, which I’m already really looking forward to seeing the employees and you have a little interaction there. And then you want to extra-perform.”

“You go into Detroit, and it’s a big deal for everybody,” added Hand. “I know we have a lot of Ford people there and Ford family, I’m sure.”

The pressure is on the Corvette Racing by Pratt Miller Motorsports drivers as well. First, the weekend is called the Chevrolet Detroit Grand Prix Presented by Lear. Second, the 1.654-mile, nine-turn street circuit goes around the Renaissance Center, the site of General Motors’ headquarters. Plus, car builder Pratt Miller is nearby. Like the Mustang GT3, the Corvette Z06 GT3.R has yet to notch its first win in IMSA competition, although it has scored victories in Fanatec GT World Challenge America with DXDT. Nicky Catsburg and Tommy Milner scored the Corvette’s first podium at WeatherTech Raceway Laguna Seca in the last outing.

“Obviously we want to do well there, for sure,” said Antonio Garcia, driver of the No. 3 Z06 GT3.R with Alexander Sims. “The target is to win there. We are running around the RenCen, so for us it’s very, very important if we can win around there.”

The Corvette squad has been leaning on its Chevrolet IndyCar Series brethren, who have a already run a race on the new downtown street circuit, although it’s slightly revised for this year. The data has gone into the driver-in-the-loop simulator, so they might have an edge. In the Ford camp, though, Hand ran the Michelin Pilot Challenge race on the circuit last year in a Mustang GT4, so he has first-hand knowledge. Either way, both teams are eager to get their first wins with the new cars, and Detroit would be the ideal place to do it.

“I think it would be great,” said Catsburg. “Honestly, that would be the perfect location to do so. I believe that many of our team members will invite family also, so it would be a great confirmation of the hard work that they’ve done over the last month and obviously a bit of a change for all of us.”

The 100-minute race, the fifth round of the WeatherTech Championship, is scheduled for a green flag at 3:10pm ET on Saturday.

How women are moving the WEC forward on and off the track

Twelve years on from the inaugural FIA World Endurance Championship race back in 2012, so much has changed. The prototypes and GT cars look and sound different and there are more major brands throwing resources at it than ever before. But you could …

Twelve years on from the inaugural FIA World Endurance Championship race back in 2012, so much has changed. The prototypes and GT cars look and sound different and there are more major brands throwing resources at it than ever before.

But you could argue that one of the most impactful changes concerns the personalities in the paddock. At the end of the 2023 season, when the Iron Dames Porsche won the last ever GTE race with an all-female crewed 911 RSR 19, there was, quite rightly, plenty of buzz about the significance of the result. It wasn’t just the first time that an all-female crewed car had won a WEC race, it was the first time the feat was achieved in a WEC circuit race too.

Iron Dames Bahrain winners Sarah Bovy, Michelle Gatting, Rahel Frey were backed up by an all-female crew, too. Motorsport Images

Reflecting on that result as I toured the paddock in Qatar at the outset of what is recognized as Women’s History Month in the United States, it got me thinking in a wider sense about the level of female representation in the WEC, because it stretches far beyond the drivers listed on the entry. There are women in race control, on marshal posts, in the press room and in the garages, working at every level. This wasn’t always the case.

Crucially, this is a change that has occurred naturally. It hasn’t happened via regulation, or in response to protests or outside pressure. Instead, this has happened because the paddock is a meritocracy and everyone in it has earned their place. It’s a significantly more diverse place of work than it was 12 years ago and it continues to evolve by the season.

Yes, the grid is the healthiest it’s ever been, with awesome machinery and a calendar full of world-class circuits. But the WEC — which, like most motorsport championships worldwide, is male-dominated behind the scenes — has matured on a human level, and that’s something that should be celebrated.

So with that in mind, it feels like the right time to tell some of the incredible background stories from a selection of the prominent women in the paddock.

But before I do, I’ll say this: This is a topic that for better or worse hasn’t been easy to write about in 2024. In fact, this story has been written, scrapped, and written again, then pulled apart and written a third time. In the world we now live in, many see it as a sensitive topic. It wouldn’t be difficult to stray into fanning the flames of a culture war that none of us need in motorsport or come across as patronizing. Finding the correct tone to do this justice is vital.

Of the five women I spoke to while gathering content for the story, there were differences in opinion and a level of skepticism in places. But to me, this is a subject that deserves to be written about, because genuinely, the World Endurance Championship is a better place to be because of its diverse cast of characters. These stories are worth telling not simply because they are from women, but because their routes to the WEC are fascinating.

So, as a very real example, let’s take a look at General Motors’ effort, with three cars across both 2024 classes and two operations representing Cadillac (Chip Ganassi Racing) and Corvette (TF Sport). Within this group, there are 10 key women, working across a variety of roles and they all have a story to tell.

Among them, Laura Wontrop Klauser (pictured in light blue at top of page), the GM sports car racing program manager who grew up on a farm in Maryland, is perhaps the most recognizable face to the WEC’s fan base. She leads the way, having worked her way up GM’s corporate ladder.

“I’m a mechanical engineer by education and when I was in college I had the really cool opportunity to be part of my team’s Formula SAE team, which is what got me interested in motorsports,” she tells RACER. “Before that, I just knew I wanted to work as an engineer and work with cars. Growing up in Maryland, I knew that my life was going to take me to Michigan, so I chased it. And Formula SAE was something I fell in love with, building a car and competing. I loved the process of building the car and being a part of the competition, getting instant feedback. It’s the highlight of my college time.”

Laura Wontrop Klauser has worked her way up the GM Racing ladder, overseeing multiple programs. GM Racing photo

After her studies concluded, she got the call from GM in 2008 to become an engineer, where she spent eight years on the production side, working on the Corvette C7 among other things before finding her way into the motorsports division.

“It was a small group when I came into it. It was just the program management positions available. And since I became a part of it my love for it has grown.

“I’ve always been fascinated by how things work,” she explains. “Everyone in America needs a car unless you live in a place like New York with good public transport. So it’s a symbol of freedom to own a car and your own destiny.”

After joining the motorsport division, Wontrop Klauser started on the Cadillac ATS V.R GT3 World Challenge program before moving into endurance racing with the Cadillac DPi effort. Now, as we move into this new GTP/Hypercar era, she’s pushing to take GM to new heights in sports car racing, winning IMSA titles, targeting WEC titles and looking to score Cadillac its first overall win at the Le Mans 24 Hours.

“I started growing the program. I added the Camaro GT4 program and then in 2021 added Corvette to my role, and from there we began working on LMDh, the GT3 program. There has been huge growth.

“I’ve been lucky in my position. I sit in an area of authority with the budget, working with teams. I’ve loved everyone that I’ve worked with. The respect is given and received.”

Bianca Janas has moved from feeding the race crews to feeding the race cars. Richard Prince/Cadillac photo.

Meanwhile, in Cadillac’s garage, Bianca Janas holds the position of fueler. Remarkably, she joins the WEC having served as a truckie for Ferrari’s Formula 1 team and a caterer at race events.

“I actually started in motorsport doing catering in DTM, and I did that for a decade before moving to do catering in WEC and Formula E for a few years,” she relates. “But I wanted more than that, so I found a job doing the tires last year and I obtained a truck license, which led me to pursue driving trucks in Formula 1. That gave me lots of opportunities.

“I did the European F1 races, but I was there for setup and packup, so I missed the race days, which I didn’t like. I always liked the logistics, though, and being part of a team is so different.

“That’s when I found a way to the Cadillac program. I’m new to the team but I have plenty of responsibilities. I am a garage technician as well as a refueller and do a little bit of everything. I enjoy the high level of performance and pressure.”

Janas works alongside Elise Moury, who is the No. 2 car’s strategy engineer and brings a wealth of motorsport experience to the program. Her route to the WEC began in GT racing, working with Team WRT in Blancpain GT, before moving to single-seaters, where she spent the bulk of my time in GP2 with Russian Time and Prema.

“But after a while,” she tells RACER, “I had a crazy idea with my husband to start a race team. We started that journey in 2018 with a team in Formula Renault. That’s stopped now, as I’ve moved into working at the Nurburgring around the 24 Hours, working as a data engineer, performance engineer, and team manager.

“But now my job has changed and I do the strategy for Cadillac, through previous experience working with Earl Bamber (who drives for Cadillac in the WEC). It’s been quite a journey, as initially when I was young I wanted to be a chemist, but I was really good at mechanical engineering and I had a teacher who motivated me to pursue an internship, which I did with Sebastien Loeb Racing in the ELMS. It’s an illness — once you’re in you can’t escape.”

If the racing bug is an illness, Cadillac race strategist Elise Moury is happy to be sick. Richard Prince/Cadillac photo.

As a strategist, her work now sees her prepare for each race ahead of travelling and working up reports after each session.

“A lot of my work is analysis before a race weekend — on pace, tire degradation, fuel consumption — before validating it when we get on track. It requires a lot of communication with key members of the team.

“During the race, it’s more exciting, as I’m working under pressure and I need to be prepared for any situation so we can react quickly. It’s all about experience and working out what we can do to improve.”

Mantella lists Corvette Z06 GT3.R; AWA to have single car at Long Beach

Anthony Mantella appears to be calling time on his IMSA WeatherTech SportsCar Championship GTD effort with the new Corvette Z06 GT3.R run by AWA. After two DNFs in the first two races of the 2024 season, including an alternator issue at Sebring that …

Anthony Mantella appears to be calling time on his IMSA WeatherTech SportsCar Championship GTD effort with the new Corvette Z06 GT3.R run by AWA.

After two DNFs in the first two races of the 2024 season, including an alternator issue at Sebring that left the car sidelined after only two laps, Mantella posted on Instagram that the Z06 GT3.R was for sale. Mantella made the switch with the AWA team from LMP3 to GTD for 2024 as AWA was selected as the first customer team in IMSA competition for Chevrolet’s first factory GT3 car.

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Mantella had Corvette factory pilot Nico Varrone, who was part of the WEC GTE-Am-winning trio for Corvette Racing in 2023, on board, along with Thomas Merrill for the endurance races and Charlie Eastwood at Daytona. The No. 17 Corvette completed 508 laps in the 24-hour race to the winning car’s 731 laps, 200 laps better than the No. 13 sister car did at Daytona. At Sebring, Orey Fidany, Matt Bell and Lars Kern finished ninth, on the same lap as winners Winward Racing.

The best finish for the factory-supported Corvette Racing by Pratt Miller Motorsports team has been a fifth in the Rolex 24 at Daytona, seven laps down from the winning car in GTD PRO.

The post by @mantella_autosport read, “Imsa spec GTD Corvette Race car for sale. Used very infrequently. Hasn’t finished a race. Perfect for the collector who wants the latest iron from Pratt and Miller / Corvette Racing. Not a perfect race car but unobtainium to the public.”

AWA, meanwhile, posted on social media that while Mantella was out, the No. 13 Corvette would be continuing and present at the next round, the Acura Grand Prix of Long Beach.

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Rolex 24, Hour 19: Corvettes drop out of GTD PRO fight

As teams and drivers welcome full daylight and the final stretch to the checker at the Rolex 24 At Daytona, the battle at the front continues to be intense between the No. 7 Porsche Penske Motorsport 963 and the No. 31 Whelen Cadillac Racing …

As teams and drivers welcome full daylight and the final stretch to the checker at the Rolex 24 At Daytona, the battle at the front continues to be intense between the No. 7 Porsche Penske Motorsport 963 and the No. 31 Whelen Cadillac Racing V-Series.R, with Felipe Nasr and Jack Aitken the current gladiators. The No. 6 PPM Porsche should be in the thick of that battle, but the team has received another stop-plus-10s penalty for exceeding the powertrain parameters.

Six cars are on the lead lap, including all four Porsches in the race and the No. 40 WTRAndretti Acura ARX-06.

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The No. 3 Corvette Racing by Pratt Miller Motorsports Z06 GT3.R spent 10 minutes in the garage with an unknown issue, mechanics working furiously in the engine bay. The car returned to the track, eight laps down to the GTD PRO leader. Just before the 19th hour came to an end, the No. 4 Corvette also headed to the garage, the crew investigating something at the front of the car. That’s left two cars fighting on the same lap in GTD PRO, the No. 1 Paul Miller Racing BMW and the No. 62 Risi Competizione Ferrari 296.

The Risi Ferrari is wearing a unique livery that harkens back to the 24 Hours of Le Mans in 2019 when it had a partnership with Ferrari Club of France. That livery was imagined and designed as part of a contest that brought together 21 pairs of students from different sectors of ENSAAMA Oliviers de Serres (School of Art and Design), a decorative arts school in Paris, France. A similar partnership was revised in 2021.

This year the Risi team is once again in a partnership with the Ferrari Club of France, and therefore ENSAAMA once again helped design another special livery for the team. The student who designed the graphics is Carla Mallein- Gerin, a third-year French student in Digital Design and Animation at the art school. Carla shared that her choice of stripes and the shades of colors were inspired by nighttime racing photos and particularly light trails which evoke speed and the goal of victory.

Unmistakably a Risi Competizione Ferrari, but with a unique twist. Richard Dole/Lumen

Five LMP2 cars remain on the same lap, with the No. 2 United Autosports car a lap off the lead. Colin Braun currently has the No. 04 CrowdStrike Racing by APR ORECA in the lead, with Ryan Dalziel in pursuit in the No. 18 Era Motorsports ORECA.

GTD is currently the domain of Winward Racing’s No. 57 Mercedes AMG, Indy Dontje at the wheel. However, Triarsi Racing, Korthoff/Preston Motorsports, Lone Star Racing, the Iron Dames and Vasser Sullivan Racing remain int he hunt. Riccardo Agostini was leading in the No. 023 Triarsi Ferrari 296 as the hour ticked over.

Both AWA Corvette Z06 GT3.Rs are now officially retired.

Class leaders after 19 hours:

GTP: Felipe Nasr, No. 7 Porsche Penske Motorsports 963

LMP2: Colin Braun, No. 04 CrowdStrike Racing by APR ORECA 07

GTD PRO: Madison Snow, No. 1 Paul Miller Racing BMW M4 GT3

GTD: Riccardo Agostini, No. 023 Triarsi Racing Ferrari 296 GT3

HOUR 19 STANDINGS

A new phase begins for Corvette in IMSA

The Chevrolet Corvette Z06 GT3.R that makes its competition debut this weekend is the third phase of IMSA WeatherTech SportsCar Championship race car since the introduction of the mid-engine C8 platform. Beginning with the C8.R GTLM, that car was …

The Chevrolet Corvette Z06 GT3.R that makes its competition debut this weekend is the third phase of IMSA WeatherTech SportsCar Championship race car since the introduction of the mid-engine C8 platform. Beginning with the C8.R GTLM, that car was altered into something more similar to the GT3 machinery that populates GTD PRO and GTD when GTLM was discontinued.

The changes to the C8.R car to make it suitable for racing in GTD PRO include the addition of ABS, a ballast box, and an air restrictor for the engine. The trick differential had to be changed to simply being a limited slip. All in all, the car was a compromise, and Corvette Racing and its drivers in GTD PRO initially found it hard to work with.

The Z06 GT3.R, on the other hand, is a ground-up, brand-new car. Developed by Pratt Miller, it’s a different concept than GTE/GTLM. Instead of being run exclusively by a factory team, it’s built for customers to run in GT3-based series worldwide, such as GT World Challenge and the World Endurance Championship’s LMGT3 class. As such, it must work well on a variety of tires from different manufacturers. Whereas in the WeatherTech Championship the cars run exclusively on Michelins, other series dictate Pirelli or Goodyear. The GTE car was designed to run on a very specific Michelin developed for the Corvette.

To the naked eye, there may not be much of a difference at first glance. But all the considerations that come into effect when designing a customer car, such as being suitable for a wide range of drivers as well ease of serviceability and repair. Fortunately, the new car doesn’t feel that much different than the GTE car.

“From a driver perspective, I feel like they’re almost the same,” explains Nicky Catsburg, who in 2023 was part of the WEC GTE-Am-winning trio for Corvette and this season will be partnering with Tommy Milner in the No. 4 Corvette Racing by Pratt Miller Motorsports Z06 GT3.R. “It feels so similar. There are some small changes, obviously. ABS is a big change to what we experienced going into the corners; it has a rather big effect on how that feels. But other than that, I must say the car feels feels fairly similar. I think most of the changes are for the team itself — they had to build so many new things. Completely different aero spec of course, engine has changed. So it was more of a change for them than it really was for the drivers. To me, it feels like driving the same car.”

Pratt Miller’s Ken Brown, the firm’s technical director for motorsports, says that with GTE/GTLM, there were a lot of tradeoffs in terms of the complexity and serviceability of the car in order to extract the ultimate performance. Building a GT3 car, though, comes with its own set of compromises and complexities.

“The way that the car is operated in service has to be more logical, more straightforward, easier to be done at a number of different levels,” Brown says. “And you’re not only going to have factory drivers in the car, you’re going to have gentlemen drivers who may only come in for one race or only be doing a couple races a year. They have a significant financial responsibility to the car as well. It has to be enjoyable, so we had to think about how easy is it to drive? What are the ergonomics? How does it handle different tires? How does it work across different track temperatures and just the way that the driver can extract lap time has to be easier, or at least something that doesn’t require as much time behind the wheel.”

But in designing a customer race car, they didn’t want to lose the general concept that made it a successful racing machine to begin with. So things like suspension, pickup points, engine and driveline architecture as well as general bodywork concepts were retained. But a GT3 car is heavier than a GTE car, so that allowed the engineering team to put weight back in in an intelligent manner. That means some parts could be built more robustly to keep the car reliable and able to survive the inevitable on-track contact.

One of the biggest changes is the support structure that has to be put in place to sell customer cars. Chevrolet tabbed Pratt Miller to provide that as well, so when a customer team like AWA in GTD or DXDT in GT World Challenge America needs technical support or parts, they can get them right away.

The four Corvette Z06 GT3.Rs that will take the green for the 62nd Rolex 24 At Daytona may be all-new cars built to a different concept than Pratt Miller used before, but the goal of winning races hasn’t changed. There will just be a lot more opportunities for victories as the car spreads worldwide.

Mustang and Corvette set to square off in deep pool of GT competition

The class structure of global sports car racing is constantly evolving. But the emergence and refinement of the FIA-homologated GT3 platform over nearly 20 years has stabilized production-based classes and created the opportunity for convergence …

The class structure of global sports car racing is constantly evolving. But the emergence and refinement of the FIA-homologated GT3 platform over nearly 20 years has stabilized production-based classes and created the opportunity for convergence between the IMSA WeatherTech SportsCar Championship, the FIA World Endurance Championship and many other series using GT3 race cars around the world.

The worldwide accessibility and appeal of GT3 has convinced Chevrolet and Ford to join the fray with factory-supported racing versions of the Corvette and Mustang. The Corvette Z06 GT3.R was revealed during 2023 Rolex 24 At Daytona festivities and has been in development with Corvette Racing partner team Pratt Miller Motorsports for the last year. Ford, meanwhile, unveiled the Mustang GT3 roughly six months later at the 100th anniversary celebration of the 24 Hours of Le Mans. Both cars will make their worldwide competition debut later this month in the 62nd Rolex 24.

Mustang and Corvette are joining a deep pool with nine other FIA-homologated GT3 cars that will compete in IMSA’s GTD and GTD PRO classes: Acura NSX Evo, Aston Martin Vantage, BMW M4, Ferrari 296, Lamborghini Huracán EVO2, Lexus RC F, McLaren 720S Evo, Mercedes-AMG and Porsche 911 (992).

Because the GT3 category emphasizes Pro-Am driver lineups, the cars are deliberately “user friendly,” with driver aids including traction control and antilock brakes. Through Balance of Performance adjustments, cars are designed to weigh between 1,200 and 1,300kg (2,645-2,866 pounds); power is regulated to 500 to 600hp and each car must meet specific drag-versus-downforce specifications.

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Modern Corvettes and Mustangs require remarkably little modification to be transformed into racing cars. In fact, high-end production versions of both cars feature more powerful engines than their GT3 racing counterparts!

Like every Corvette, the GT3.R is built up from an aluminum chassis produced at Chevrolet’s Bowling Green Assembly plant in Kentucky. The 5.5-liter flat plane crankshaft DOHC V-8 engine — designated LT6 — also originates from the Performance Build Center in southern Kentucky. The racing version of the LT6 shares 70 percent of its components with the standard Z06 engine that originates on the same line. Pratt Miller then fabricates the integrated steel roll cage and side intrusion safety features.

As with the production Z06, the Corvette GT3.R utilizes double wishbone suspension, adding racing-specific springs, dampers and brake components. The racing car features a six-speed sequential transaxle rather than dual clutch eight-speed in the stock Z06.

The Mustang GT3 starts its life on Ford’s Flat Rock, Michigan, assembly plant before being modified for racing by Multimatic Motorsports. The 5.4-liter V8 engine is an enlarged version of the stock Mustang GT’s 5.0-liter “Coyote” powerplant developed by Ford Performance and M-Sport, which is Ford’s longtime World Rally Championship partner.

Aside from the wild carbon fiber bodywork punctuated by an enormous rear wing, the most notable difference between the GT3 and Mustangs for the road is the rear-mounted transaxle with six-speed sequential shift. Multimatic also contributes proprietary dampers and bespoke short-long arm suspension.

North American sports car racing fans will see seven of the new American GT3 machines on the 2024 WeatherTech Championship grid, highlighted by factory-backed two-car efforts from Chevrolet and Ford in the GTD PRO class. Corvette Racing by Pratt Miller Motorsports will field the Nos. 3 and 4 Corvettes in a familiar yellow livery, while Ford Multimatic Motorsports’ entries are Nos. 64 and 65. In addition, AWA will represent Corvette in the GTD class with the Nos. 13 and 17 cars for the full season, with Proton Competition slated to enter the No. 55 Mustang in select events.

With Mustang and Corvette street cars now available for sale around the world, Ford and Chevrolet will also have an international racing presence with their new GT3 contenders. Proton Competition has entered two Mustangs in the WEC, against competition including a pair of Corvettes prepared by TF Sport.

“Mustang is our icon,” said Mark Rushbrook, global director of Ford Performance Motorsport. “We are excited about 2024 for Mustangs in total and what they can do, but especially here in the WeatherTech (Championship) at the GTD PRO level.”

“Our goal is to have Corvettes racing around the world,” added Laura Wontrop Klauser, GM sports car racing program manager. “Our IMSA GTD PRO team is taking the lead on optimizing the running of the car so we can lift all teams to higher performance.”

The Corvette GT3.R and Mustang GT3 will make their official on-track debuts at the Roar Before the Rolex 24, the three-day test session Jan. 19-21 at Daytona International Speedway that also includes qualifying for the Rolex 24, which runs Jan. 27-28 on the same 3.56-mile road course.