Porsche reaffirms its dominance in the IMSA WeatherTech SportsCar Championship.
Last year, Porsche’s 963 racing hypercar and the 911 GT3 R were superstars in the IMSA WeatherTech SportsCar Championship. At some of the most iconic and challenging race tracks in the world, including Daytona, Laguna Seca, Watkins Glen, Road America and Indianapolis, Porsche came out on top in both the top-tier GTP category and the GTD Pro class of the championship.
AO Racing’s Porsche 911 GT3 R won the GTD Pro Championship and took the team, driver and manufacturer titles with its cartoonish and now incredibly popular ‘Rexy’ livery. Meanwhile, the Porsche 963 hypercar did the same in the GTP category, with both Porsche Penske Motorsport cars finishing first and second in the Drivers’ Championship, Constructors’ Championship and Teams’ Championship.
That dominance meant that in this year’s IMSA racing calendar, Porsche was the team to beat and the pressure was on for Porsche to defend its many titles. The legendary Petit Le Mans race at Road Atlanta took place last weekend as the season finale of the SportsCar Championship. With all championship titles coming to a head at the 10-hour race, the Porsche hypercar factory team managed to continue its winning streak for the 2025 season away from Petit Le Mans with all its championship titles defended.
Cadillac Whelen finished first at Petit Le Mans, while driver Earl Bamber crossed the line in the Cadillac V-Series.R. However, the Porsche Penske Motorsport factory team’s third and tenth place finishes from the factory Porsche 963 hypercars team secured the manufacturer and team titles, with Matt Campbell and Mathieu Jaminet claiming the driver titles. In the championship’s Michelin Endurance Cup, Felipe Nasr and Nick Tandy claimed the Drivers’ Championship victory.
Sporting a Halloween-themed skeleton paint scheme, the AO Racing “Rexy” 911 GT3 R fought hard but fell short of the GTD Pro class wins this year. Other Porsche customer teams with both 963 hypercars and the 911 GT3 R added Porsche representation to the grid throughout the season. However, with a solid finish at Petit Le Mans, the factory hypercars continued a streak of IMSA dominance that will be tested again early next year, with the Rolex 24 at Daytona taking place at the legendary Daytona International Speedway from January 21 to 25, 2026.
Image source: Porsche
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