How Cadillac had its best season yet in international endurance racing

2025-11-10


            

By Chris Perkins, writer and editor, GM News 

Looking at the results, you might not believe that 2025 was the first year for Cadillac Hertz Team JOTA in the FIA World Endurance Championship. After the season-finale Bapco Energies 8 Hours of Bahrain, Cadillac took home fourth in the Hypercar FIA World Endurance Manufacturers' Championship.

The team made some history in the process. Cadillac was the first American manufacturer to take pole at the 24 Hours of Le Mans since 1967, with the No. 12 and No. 38 JOTA V-Series.R Hypercars locking out the front row at the 2025 running of the iconic endurance race. In São Paulo, with a 1-2 finish led by the No. 12 of Alex Lynn, Norman Nato, and Will Stevens, Cadillac took the first WEC victory for any American manufacturer.

Caption: Cadillac Hertz Team JOTA celebrating its 1-2 finish at São Paulo.

For Keely Bosn, Cadillac Racing program manager, working with JOTA has been a joy.

“The relationship [with JOTA] has been phenomenal across the season,” she says. “We’re all working and communicating very well together; we’ve had a lot of efficiencies in communication that have improved over the season. We’ve reached a great point, here at the end of the season, to face 2026.”

Bosn works with all three global Cadillac Racing teams: Cadillac Wayne Taylor Racing and Action Express Racing in the IMSA WeatherTech series, and Cadillac Hertz Team JOTA in WEC. At this year’s 24 Hours of Le Mans, Cadillac ran four cars, the two full-season WEC entries from JOTA and one car each from the IMSA teams. This was the first time all three teams worked together, a pivotal moment.

CAPTION: The four-car Cadillac V-Series.R lineup at the 24 Hours of Le Mans.

“It was almost like forced team bonding with the two IMSA teams going to Le Mans,” Bosn says with a laugh. The teams had to coordinate on everything from booking hotel rooms to shipping parts from the US to France. And of course, the teams had to work with JOTA as well. It proved to be a benefit for the whole Cadillac Racing organization.

“There were so many behind-the-scenes conversations that wouldn’t have happened otherwise,” Bosn says. “When you’ve got boots on the ground with all your engineers in a room, and they’re talking across all three teams, that’s pretty exciting.”

Cadillac Racing left Le Mans stronger than ever, and that momentum carried into São Paulo. “Everyone was extremely focused on winning, and we knew that we had the capability to be fast,” Bosn explains. Cadillac’s 1-2 victory around the Autodromo Carlos Pace was the ultimate proof of our capability.

CAPTION: Cadillac Hertz Team JOTA drivers on the podium following the 1-2 at São Paulo.

Though another front-row lockout at Fuji didn’t convert into a victory, it was yet more proof of the team’s strength. Cadillac Racing heads into the next season with optimism. The V-Series.R will benefit from exciting engineering developments, and continuity with our teams across both series will continue to pay dividends. In WEC, the bond between Cadillac Racing and JOTA continues to strengthen.

“With JOTA, they have this way of pulling all the GM folks into their team, and they have a very unique culture,” Bosn says. “They’re such jovial people. The communication has been so wonderful. It really is a testament to how JOTA operates and makes sure that everyone feels like they’re part of the team. They do a really good job of that.”

Jenson Button, the 2009 Formula 1® champion and driver in the No. 38 V-Series.R, echoes that sentiment. “Working with Cadillac and JOTA, it’s been a real lovely atmosphere within the team, a real family atmosphere. Even though we’re a factory team, it still has that family vibe,” he says.

CAPTION: Jenson Button in Bahrain.

Bahrain was Button's last race as a professional driver. “I’m going to miss it, but there are so many other things I want to do and achieve in my life, and I’m looking forward to discovering them.”

The 2025 season may be over, but preparation for the 2026 season is well underway. Cadillac Racing IMSA drivers Jack Aitken and Ricky Taylor participated in the WEC Rookie Test in Bahrain on Sunday. On the 14th and 15th, Cadillac’s IMSA teams will run in the test at Daytona International Speedway, with NASCAR Xfinity regular season champion Connor Zillisch set to run in the No. 31.

Between now and IMSA-season-opening Rolex 24 at Daytona in January, Bosn and everyone at Cadillac Racing will be working hard to ensure continued success in 2026. “With all the stuff we’ve done this year, and all the things we have planned for next year, Daytona is looking pretty good.”

By Chris Perkins, writer and editor, GM News 

No. 12 Cadillac V-Series.R at the Sakhir International Circuit
The No. 12 Cadillac V-Series.R of Alex Lynn, Norman Nato, and Will Stevens at the Sakhir International Circuit.

Looking at the results, you might not believe that 2025 was the first year for Cadillac Hertz Team JOTA in the FIA World Endurance Championship. After the season-finale Bapco Energies 8 Hours of Bahrain, Cadillac took home fourth in the Hypercar FIA World Endurance Manufacturers' Championship.

The team made some history in the process. Cadillac was the first American manufacturer to take pole at the 24 Hours of Le Mans since 1967, with the No. 12 and No. 38 JOTA V-Series.R Hypercars locking out the front row at the 2025 running of the iconic endurance race. In São Paulo, with a 1-2 finish led by the No. 12 of Alex Lynn, Norman Nato, and Will Stevens, Cadillac took the first WEC victory for any American manufacturer.

Cadillac Hertz Team JOTA Celebrates São Paulo 1-2 Finish
Cadillac Hertz Team JOTA celebrating its 1-2 at São Paulo.

For Keely Bosn, Cadillac Racing program manager, working with JOTA has been a joy.

“The relationship [with JOTA] has been phenomenal across the season,” she says. “We’re all working and communicating very well together; we’ve had a lot of efficiencies in communication that have improved over the season. We’ve reached a great point, here at the end of the season, to face 2026.”

Bosn works with all three global Cadillac Racing teams: Cadillac Wayne Taylor Racing and Action Express Racing in the IMSA WeatherTech series, and Cadillac Hertz Team JOTA in WEC. At this year’s 24 Hours of Le Mans, Cadillac ran four cars, the two full-season WEC entries from JOTA and one car each from the IMSA teams. This was the first time all three teams worked together, a pivotal moment.

Four Cadillac V-Series.Rs at Le Mans
The four-car Cadillac V-Series.R lineup at the 24 Hours of Le Mans.

“It was almost like forced team bonding with the two IMSA teams going to Le Mans,” Bosn says with a laugh. The teams had to coordinate on everything from booking hotel rooms to shipping parts from the US to France. And of course, the teams had to work with JOTA as well. It proved to be a benefit for the whole Cadillac Racing organization.

“There were so many behind-the-scenes conversations that wouldn’t have happened otherwise,” Bosn says. “When you’ve got boots on the ground with all your engineers in a room, and they’re talking across all three teams, that’s pretty exciting.”

Cadillac Racing left Le Mans stronger than ever, and that momentum carried into São Paulo. “Everyone was extremely focused on winning, and we knew that we had the capability to be fast,” Bosn explains. Cadillac’s 1-2 victory around the Autodromo Carlos Pace was the ultimate proof of our capability.

Cadillac Hertz Team JOTA drivers on the podium in São Paulo
Cadillac Hertz Team JOTA drivers on the podium following the 1-2 at São Paulo.

Though another front-row lockout at Fuji didn’t convert into a victory, it was yet more proof of the team’s strength. Cadillac Racing heads into the next season with optimism. The V-Series.R will benefit from exciting engineering developments, and continuity with our teams across both series will continue to pay dividends. In WEC, the bond between Cadillac Racing and JOTA continues to strengthen.

“With JOTA, they have this way of pulling all the GM folks into their team, and they have a very unique culture,” Bosn says. “They’re such jovial people. The communication has been so wonderful. It really is a testament to how JOTA operates and makes sure that everyone feels like they’re part of the team. They do a really good job of that.”

Jenson Button, the 2009 Formula 1® champion and driver in the No. 38 V-Series.R, echoes that sentiment. “Working with Cadillac and JOTA, it’s been a real lovely atmosphere within the team, a real family atmosphere. Even though we’re a factory team, it still has that family vibe,” he says. 

Jenson Button in Bahrain
Jenson Button in Bahrain.

Bahrain was Button's last race as a professional driver. “I’m going to miss it, but there are so many other things I want to do and achieve in my life, and I’m looking forward to discovering them.”

The 2025 season may be over, but preparation for the 2026 season is well underway. Cadillac Racing IMSA drivers Jack Aitken and Ricky Taylor participated in the WEC Rookie Test in Bahrain on Sunday. On the 14th and 15th, Cadillac’s IMSA teams will run in the test at Daytona International Speedway, with NASCAR Xfinity regular season champion Connor Zillisch set to run in the No. 31.

Between now and IMSA-season-opening Rolex 24 at Daytona in January, Bosn and everyone at Cadillac Racing will be working hard to ensure continued success in 2026. “With all the stuff we’ve done this year, and all the things we have planned for next year, Daytona is looking pretty good.”