Beyond convergence: How IMSA is raising sports car racing’s profile

Sitting in the press conference room at Daytona back in January of 2020, when IMSA and the ACO first revealed the global LMDh concept, paving the way for the “convergence” of the WeatherTech SportsCar Championship and FIA World Endurance …

Sitting in the press conference room at Daytona back in January of 2020, when IMSA and the ACO first revealed the global LMDh concept, paving the way for the “convergence” of the WeatherTech SportsCar Championship and FIA World Endurance Championship’s top categories, it was hard to imagine how it would play out. It all sounded great, but would it work?

That day, senior representatives from the sport’s governing bodies and manufacturers described the LMDh reveal as a “game changer,” “a sensible approach,” “enormous,” “huge” and “historic.” Yet nobody truly knew where things would lead, or whether manufacturers would come in numbers when when the ruleset debuted globally.

Fast forward four years and we have a growing IMSA GTP field that will feature six factories next year and a WEC Hypercar grid with almost 20 full-season cars from nine manufacturers. It’s taken off and the task at hand is now very different.

Before, the focus of the rule-makers was to build the grids, attract new manufacturers and encourage investment for the future. Now, it’s about sustaining what we have and building an audience for on-track products that have never looked better.

Looking specifically at IMSA, it’s fair to say that within the castle walls the level of growth that the WeatherTech Championship is experiencing is currently exceeding all expectations. IMSA President John Doonan is buoyed by recent progress, yet remains far from complacent.

This astonishing era of convergence in sports car racing is peaking, and fast. Crowds are attending races in record numbers on almost a weekly basis and broadcast viewing figures are on an upward curve globally.

But Doonan knows as well as anyone that it can all change in a heartbeat. This is an area of motorsport which is cyclical by nature, with manufacturers coming and going as rulesets evolve. Right now we are in the midst of an era that will be looked back on fondly for decades to come, yet champagne celebrations are not a weekly feature at head offices. Nobody at IMSA is under the illusion that it will last forever.

As a result, the hard work hasn’t stopped and is ongoing behind the scenes to build the audience for IMSA’s WeatherTech Championship and its support series. The foundations are important — they need to be as strong as possible so any and all future storms can be weathered.

IMSA’s revitalization in the LMDh era has gone hand in hand with a concerted push into digital media. Michael Levitt/Motorsport Images

A great example of IMSA’s forward thinking came back in March, when it began streaming races for free on YouTube at Sebring for fans outside the U.S. IMSA didn’t promote this addition to its broadcast offering that week; instead, it was a soft launch. The powers that be wanted to see what would happen if broadcasts were placed on its channel — which has a following of more than 350,000 people and potential for growth via “the algorithm” — with no promotion.

It was, quite literally, an overnight success. The live race broadcast for the 12 Hours now sits on the IMSA Channel with 542 thousand views and prompted the decision to add YouTube as a permanent home for race broadcasts alongside its desktop platform and app.

With moves like this, IMSA is seizing the moment. The WeatherTech Championship may be based in the U.S. (with the exception of the annual race at Canadian Tire Motorsport Park), but the “I” in IMSA stands for “International” and as time goes on, growing and servicing the championship’s global fan base is becoming more of a priority.

“With convergence, sports car racing is in the spotlight more than at any point we’ve seen in our careers,” Doonan explains to RACER. “When we moved to YouTube at Sebring, for the oldest endurance race in America, we had about 500,000 viewers live at the peak during that broadcast. We had high hopes, but that was beyond what we thought was possible.

“The North American market is incredibly important to our OEMs, our drivers, and our partners. IMSA is the largest ‘international’ racing series in North America. Those two points, coupled with the fact that we have 18 manufacturers choosing to compete with us and dozens of drivers from all around the world on our grid, means that getting our IMSA product and broadcasts in front of a growing international audience is incredibly important.”

Balancing the needs and expectations of fans alongside those of OEM principals like GM’s Todd Christensen (right) is critical to the growth strategy being executed by IMSA President John Doonan. Michael Levitt/Motorsport Images

Post-Sebring, the data has continued to provide encouraging signs. The audience outside the USA didn’t just tune in for the race with the highest profile and bolt. Instead, Doonan revealed, fans have stayed put, making for a remarkable statistical jump year on year.

“We had 4.3 million hours watched on YouTube in 2023, and through the year to date so far we’ve had 15 million hours watched. It’s a special opportunity for us and we’re really happy,” he says. “It’s making our manufacturers and partners happy too. The North American market has been named by almost every single manufacturer as the most important market for them when it comes to growing a brand.

“But with 18 manufacturers, their global headquarters may not be in the USA — they may be elsewhere. So, giving their executive teams — and people in the boardroom who agree racing is a proper marketing tool and an R&D tool — an easy way to view the races and see their return on investment is critical.

“Alpine (a target for IMSA in GTP going forward) is a tremendous example. They want to come to the U.S. and sell road cars. If you bring the racing program as part of the brand launch, it’s an authentic way to launch a brand. To do that you need lots of elements, retail locations and a distribution network, but you need awareness more than anything else. What better way to get that than via showing the public what you can do on track?”

John Doonan at the Brickyard on Carb Day

IMSA President John Doonan tells RACER’s Marshall Pruett about his love for the Indy 500, as well as plans for IMSA events at the Indianapolis Motor Speedway. Presented by RACER’s Indy 500 Trackside Report is presented by The American Legion. 90 …

IMSA President John Doonan tells RACER’s Marshall Pruett about his love for the Indy 500, as well as plans for IMSA events at the Indianapolis Motor Speedway.

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IMSA’s Doonan explains details behind Watkins Glen penalties

The Sahlen’s Six Hours of the Glen two weeks ago saw a rash of penalties levied against IMSA WeatherTech SportsCar Championship teams both during the race and after. The most significant of those was the No. 6 Porsche Penske Motorsport 963 of …

The Sahlen’s Six Hours of the Glen two weeks ago saw a rash of penalties levied against IMSA WeatherTech SportsCar Championship teams both during the race and after. The most significant of those was the No. 6 Porsche Penske Motorsport 963 of Mathieu Jaminet and Nick Tandy being moved to last place in GTP for having a skid plank worn below the minimum thickness, but there were also many mechanical black flags given to teams for having tire pressures outside of spec or malfunctioning tire pressure monitoring systems (TPMS).

RACER sat down with IMSA President and CEO John Doonan at Canadian Tire Motorsports Park to talk about the penalty for PPM, as well as the change in the way the tire pressure rule is enforced.

“The Sahlen’s Six Hours of the Glen ends, [the on-track-winning No. 6 963] goes through technical inspection, and immediately in that process we identify an issue,” Doonan explained. “When that happens, we measure, we measure again, and in this case, measure another time and realize there’s an issue. It’s go, no go; green light, red light; black, white … whatever you want to call it. Unofficial results have gone out, so before we’re anywhere near official, we have an understanding that we’ve got a problem. So we issue a penalty and there is always a process of protesting that penalty, appealing that down the road. We worked through that with the team and in the end, their protest was not admissible, based on supervisory official review. The penalty stood and results were impacted appropriately.”

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IMSA enforces the skid plank minimum thickness to ensure the car isn’t running too low. That can be both a performance advantage as well as a safety issue — a car bottoming out can lead to wrecks. While PPM declared that the plank was barely below the minimum, as Doonan noted, it’s either greater or less than minimum thickness as far as the rule is concerned; the degree to which it is outside the tolerance is irrelevant.

Comparisons have been drawn between the penalty applied to the PPM No. 6 for the Glen infraction and the Meyer Shank Racing team for manipulating the tire pressure data that is transmitted to IMSA during the Rolex 24 At Daytona. The MSR No. 60 Acura team received a 200-point penalty, harsher than the 130-point swing PPM experienced, but was allowed to keep the victory. The difference is in the timing, Doonan said.

“Official results (were issued for Daytona), then later we are informed of an issue. So it put us in a very unique position to have to go back,” Doonan said. “Everyone left the track, everyone went home, everybody did all their post-race stuff. It went to our supervisory officials and went to our board and went to, part of it, went to appeal. So just very unique. None of it makes us happy.”

Gavin Baker/Motorsport Images

Neither did the mechanical black flags issued at the Glen make them happy. While Michelin and IMSA have always set minimum tire pressures as a safety measure, the way the rule was enforced changed. Previously, the teams were told to fix it during the next pit stop. However, lower tire pressures can be a performance advantage — the very reason MSR was manipulating the data — and, according to one team manager, many teams would use lower pressures in their final set of a race. Thus the new rule that pressures below the minimum, or a malfunctioning TPMS system, would be required to be fixed immediately.

“Tire pressure has become an area to gain performance,” Doonan noted. “Michelin has a set of parameters that they are recommending to our teams; we, in good partnership, are working with them to find a way to make sure teams operate within the window.

“We have to make sure that we have a good process to make sure people are following the regulation and not gaining an unfair advantage over the other cars. So we’re continuing to work with Michelin on how we regulate the TPMS. Again, IMSA officials don’t like penalizing people, and so to have, I think, 11 during the race is too many. At the same time, it doesn’t excuse people who are running out of compliance.”

Sunday’s Chevrolet Grand Prix at Canadian Tire Motorsports Park will show if teams have adjusted their approach to tire pressures or not.

IMSA’s Doonan lends his experience, enthusiasm to NASCAR Garage 56 project

Energy. Enthusiasm. Passion for the product. Those are the qualities that convinced NASCAR and IMSA Chairman Jim France and IMSA CEO Ed Bennett that John Doonan was the right man to serve as President of IMSA. Doonan, the former director of …

Energy. Enthusiasm. Passion for the product. Those are the qualities that convinced NASCAR and IMSA Chairman Jim France and IMSA CEO Ed Bennett that John Doonan was the right man to serve as President of IMSA.

Doonan, the former director of motorsports for Mazda North America, joined IMSA in October 2019, and since then, he has played a key role in creating IMSA’s successful new Grand Touring Prototype (GTP) class. He also strengthened an alliance with the Automobile Club d’Ouest that has created convergence between IMSA and the international sports car racing community.

France more recently tabbed Doonan to lead a special project that is very close to France’s heart. In 1976, France’s father, NASCAR founder Bill France, hatched a plan to enter a pair of Cup Series cars in the 24 Hours of Le Mans. Both cars (a Ford Torino fielded by Junie Donlavey and a Dodge Charger run by Herschel McGriff) failed to make the halfway point of the race, but the uniquely American entries created a strong impression at the historic event and forged a lasting memory for Jim France.

Now, in an effort to boost NASCAR’s international presence and demonstrate the versatility of the Next Gen Cup Series car, France proposed revisiting the events of 1976 by preparing a modified Cup car for Le Mans as the classic endurance event’s “Garage 56” category, an invitational entry intended to showcase new or unusual technology. Chevrolet, Hendrick Motorsports, and Goodyear were recruited as partners for the project, and Doonan was asked to be the project leader of the effort.

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“In 1976, NASCAR at the time was really strong in the southern U.S. and starting to continue out west, but Mr. France felt it needed more global recognition,” Doonan notes. “The cars were not built to FIA standard at the time, but it was a chance to go over there and try to introduce what was gaining traction here in the States to an international audience. It was the chance to put a stake in the ground and say, ‘Hey, NASCAR is real. Give it a look.’

“Fast forward, the current NASCAR Cup car is a far more versatile and modular car,” he continued. “It’s a lot like the GT cars that run in IMSA or at Le Mans, relative to design and engineering. Jim felt like it was an optimal time to recreate what his dad did and put NASCAR further onto a global stage that can showcase the new car in a manner that might catch the eyes of some of the other manufacturers. I hope the other OEMs come and see there is a huge opportunity with NASCAR and its new car with more road courses.”

As the most successful manufacturer in NASCAR history, Chevrolet was an obvious choice, and Hendrick Motorsports has emerged as the lead Chevrolet NASCAR team over the past 30 years. Similarly, Goodyear’s relationship with NASCAR dates to the 1950s.

Doonan’s task was to ensure that these separate entities came together in pursuit of a common goal, and to assemble a compelling driver lineup that would resonate with American and international race fans. The drivers ultimately chosen were seven-time NASCAR Cup Series champion Jimmie Johnson, 2009 Formula 1 world champion Jenson Button and versatile sports car ace Mike Rockenfeller, a two-time Le Mans winner, including overall honors in 2010.

“A lot of my role and responsibility is bringing all the partners together, aligning with the ACO, and then finding a driver lineup that also achieved what Jim had hoped for — a group of folks that are well known globally and domestically, who can further our messaging based on their reach,” Doonan says. “The three of them came together like they went to school together as little kids. They’ve really jelled and embraced the project for what it is.

“Everyone has come together so well, and it’s been a lot of fun,” he added. “(IMSA and Corvette factory driver) Jordan Taylor is a coach for the drivers, and I feel like I’ve just been a coach for trying to get the various partners communicating.”

Doonan has certainly made a strong impression on the members of the Garage 56 team. Like Rockenfeller, a veteran of factory Le Mans programs for Audi, Porsche, and Corvette Racing.

“John, for me, is a perfect fit,” Rockenfeller said. “There’s a reason Jim France and his folks put John in that position. I knew him a little when he was running Mazda, but I’ve really gotten to know him well with Garage 56.

“I have to say, the positivity, the smile, the energy he brings all the time, is amazing. He pushes everybody, but is very friendly, very kind, and appreciates stuff. But he also moves things in the right direction. This is a huge project, with great partners. It’s kind of a crazy idea if you think about it, to take NASCAR to Le Mans. But John is absolutely the right guy to lead the effort.”

The Garage 56 entry, which will run as No. 24 — a number traditionally associated with Hendrick — required surprisingly little in the conversion from stock car to endurance racing sports car. The car gained real headlights and taillights, as well as some subtle aerodynamic modifications to increase downforce. The engine is essentially the same iron small-block V8 used in the Cup Series, adapted for the rigors of 24 hours of consecutive running. The car is roughly 500 pounds lighter than a standard Cup car.

Like a Cup car, the Garage 56 car does not have doors; driver changes will be executed through the window, NASCAR-style. In an unusual twist, the ACO insisted on using traditional NASCAR hand jacks for tire changes rather than an air jack system engineered into the car.

“There’s no doubt it’s a tall task to finish the race with this car,” observes Doonan. “We’ve tested seven different times at a variety of circuits, most notably a 24-hour test at Sebring that went really, really well. I think we’re cautiously optimistic the car will achieve what it was set out to do. ‘Finish the race,’ Mr. France said, ‘but don’t finish last.’”

Indeed, the goal for Garage 56 is not to win the 24 Hours of Le Mans. This is a project intended to build bridges and strengthen relationships, all while hopefully boosting NASCAR’s image on an international basis. But IMSA stands to benefit as well.

“I think this is an additional step towards showing the world what NASCAR racing is all about, what the fans over here have loved for 75 years,” Doonan says. “Steve Phelps (NASCAR president) has said over and over that NASCAR is going to do some bold things. L.A. Coliseum, Chicago street race, North Wilkesboro…my hope all along has been that this can be part of that. It’s putting NASCAR on additional people’s radar. It’s a great time for NASCAR, and to have this happen during the 75th anniversary celebration for NASCAR and the 100th anniversary of Le Mans adds a historical perspective on the whole thing that I love.

“For IMSA, it’s an extension of the relationship with the ACO,” he continues. “It adds to what we’ve tried to do with bringing the top category together, and now the fact that they (the FIA World Endurance Championship) will run GT3 cars in the future as well. I think this is maybe another spoke in that wheel of partnership with the ACO.”

The Garage 56 project has been very personally satisfying for Doonan, giving him a chance to revisit previous experiences as a grassroots racer who ultimately rose to a powerful position in the motorsports world. Under Doonan’s guidance, Mazda grew into the most popular brand in American road racing.

“I feel like I’m back in the race team side of the sport, and a huge part of me is going to miss this project when we reach the checkered flag on Sunday, June 11,” Doonan said. “I grew up at the racetrack; I’ve been a racer all my life. This project gave me a chance to go back to rooting for a specific car in a race, so it’s given me a little boost of energy and excitement to be back on that side.

“But the men and women who have executed this thing are the real heroes of the project. It’s been a total blast and I feel like I’ve gained a whole new batch of friends. There’s no doubt that has been the most rewarding aspect. It’s a historic moment for NASCAR, and I’m super proud of the opportunity to be part of it.”

IMSA’s John Doonan and IndyCar’s Jay Frye are the same guy

IMSA president John Doonan and IndyCar president Jay Frye learn about their unbelievable parallels with with RACER’s Marshall Pruett at the Grand Prix of Long Beach.

IMSA president John Doonan and IndyCar president Jay Frye learn about their unbelievable parallels with with RACER’s Marshall Pruett at the Grand Prix of Long Beach.

VIDEO: IMSA & SCCA partner on Track Marshal Training Program

The Sports Car Club of America provides the majority of volunteer track marshals who serve as the corner workers and all major forms of infrastructure behind amateur and pro racing events, and with an eye to recruiting and developing new talent, the …

The Sports Car Club of America provides the majority of volunteer track marshals who serve as the corner workers and all major forms of infrastructure behind amateur and pro racing events, and with an eye to recruiting and developing new talent, the SCCA and IMSA have partnered on a new training program to ensure the next generation of track marshals continue the tradition for decades to come.

IMSA president John Doonan tells RACER’s Marshall Pruett about the exciting new development and relationship with the SCCA.

Entered in learning more about become an SCCA corner worker? Check out  https://www.scca.com/pages/workers-officials

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VIDEO: Garage 56 update with John Doonan

RACER’s Marshall Pruett and IMSA President John Doonan catch up on the latest developments with the Chevrolet ZL1 NASCAR Cup car that’s been developed to race under the Garage 56 entry in June at the 24 Hours of Le Mans. Presented by At Piloti, it …

RACER’s Marshall Pruett and IMSA President John Doonan catch up on the latest developments with the Chevrolet ZL1 NASCAR Cup car that’s been developed to race under the Garage 56 entry in June at the 24 Hours of Le Mans.

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