After the recent win at the Indianapolis Speedway, Cadillac has gone back-to-back at the Motul Petit Le Mans to conclude the 2025 IMSA WeatherTech SportsCar Championship season at Michelin Raceway Road Atlanta. Cadillac won the 2025 Petit Le Mans, with the No. 31 Whelen Cadillac V-Series.R driven by Jack Aitken, Earl Bamber, and Frederik Vesti taking the overall and GTP class victory. This marks a second consecutive Petit Le Mans win for Cadillac and for the No. 31 team, though Porsche secured the 2025 IMSA GTP championship titles.

Winning car: The No. 31 Whelen Cadillac V-Series.R. Winning drivers: Jack Aitken, Earl Bamber, and Frederik Vesti.

Race details: The win was Cadillac's second consecutive victory at Petit Le Mans and its second consecutive race win to end the season.

Championship context: Despite the race victory, the No. 6 Porsche Penske Motorsport Porsche team, driven by Mathieu Jaminet and Matt Campbell, clinched the 2025 IMSA GTP driver and manufacturer championships with a third-place finish.

The #31 Action Express Racing Cadillac V-Series.R LMDh took the flag after 10 hours of racing around Road Atlanta with a 5.1s margin over #23 The Heart of Racing Aston Martin Valkyrie Le Mans Hypercar shared by Ross Gunn, Roman De Angelis and Alex Riberas. The Action Express Cadillac was the fastest car for the majority of the 10-hour IMSA SportsCar Championship finale at Road Atlanta, but had to fight back from an early delay to retain the Petit Le Mans crown won by the Chip Ganassi Racing squad in 2024.