Porsche Wins 2025 IMSA WeatherTech SportsCar Driver, Manufacturer & Team Titles

Porsche reasserts its IMSA WeatherTech SportsCar Championship dominance.

Last year, Porsche’s 963 racing hypercar and the 911 GT3 R were superstars in the IMSA WeatherTech SportsCar Championship. Some of the world’s most iconic and challenging race tracks, including Daytona, Laguna Seca, Watkins Glen, Road America, and Indianapolis, saw Porsche come out on top in both the top-class GTP category and the GTD Pro class of the championship.

AO Racing’s Porsche 911 GT3 R won the GTD Pro championship, snagging the Teams’, Drivers’, and Manufacturers’ 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, the Manufacturers’ Championship, and the Teams’ Championship.

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Three race car drivers in matching suits hold trophies and smile on the podium at the 2025 Petit Le Mans, part of the IMSA WeatherTech SportsCar Championship. A backdrop with event and Porsche branding is visible behind them.

A smiling man wearing glasses and a Team Penske polo shirt stands with arms crossed in front of a Penske-branded garage, ready for the 2025 IMSA WeatherTech SportsCar season with Porsche.

Porsche race cars speed by a brightly lit pit lane at dusk during the 2025 IMSA WeatherTech SportsCar event, with a dramatic, colorful sky and dark trees in the background.

A man wearing a headset and Porsche team uniform monitors controls and screens at the 2025 IMSA WeatherTech SportsCar pit wall, with other crew members in the background.

A large crowd gathers on the racetrack grid next to parked Porsche race cars, with Michelin banners and the Michelin Man visible in the background during the 2025 IMSA WeatherTech SportsCar event.

A large crowd gathers on a racetrack, with people holding numbered signs above their heads and many wearing caps and racing attire, ready to cheer for Porsche at the 2025 IMSA WeatherTech SportsCar event.

Porsche race cars speed past the illuminated pit lane at dusk during the 2025 IMSA WeatherTech SportsCar event, set against a dramatic, cloud-streaked sky.

A Porsche racing team poses together at night celebrating their 2023 IMSA WeatherTech SportsCar championship win, holding a banner and trophies in front of a backdrop that reads "2023 Champions.

A large outdoor car show features dozens of parked Porsche vehicles, including 2025 models, with many people walking around and a white Porsche-branded tent in the background, celebrating IMSA WeatherTech SportsCar excitement.

A Porsche race car with headlights on speeds along a dimly lit track at night during the IMSA WeatherTech SportsCar event, blue and yellow curbs visible at the road's edge.

A green and yellow Porsche race car speeds along the track at the 2025 IMSA WeatherTech SportsCar event, with a blurred crowd of spectators in the background.

A yellow Porsche speeds past blurred lights at night on a racetrack, motion blur highlighting its fast movement in the IMSA WeatherTech series.

A white SportsCar with a shark mouth design leads a group of cars on the racetrack during an IMSA WeatherTech event, with motion blur highlighting the high-speed action.

A 2025 Porsche race car with a shark mouth design receives a pit stop service from a team of mechanics during an IMSA WeatherTech SportsCar event.

A large Porsche racing team celebrates on stage in front of a “2023 Champions” banner, holding a sign that reads “2023 IMSA WeatherTech SportsCar Championship,” looking ahead to 2025 with excitement.

That dominance meant that in this year’s IMSA calendar of races, Porsche was the team to beat, and the pressure was on for Porsche to defend its many titles. Road Atlanta’s legendary Petit Le Mans race took place this past weekend as the SportsCar Championship’s season finale. With the championship titles all coming to a head at the 10-hour race, Porsche’s hypercar factory team managed to continue its winning streak for the 2025 season, coming away from Petit Le Mans with all of its championship titles defended.

Cadillac Whelen finished first at Petit Le Mans, with driver Earl Bamber crossing the line in the Cadillac V-Series.R. However, the Porsche Penske Motorsport factory team’s Porsche 963 hypercars’ third and tenth-place finishes secured the team the manufacturer and team titles, and Matt Campbell and Mathieu Jaminet claimed the driver titles. In the championship’s Michelin Endurance Cup, Felipe Nasr and Nick Tandy claimed the drivers’ championship win.

In a Halloween-themed skeletal livery, the AO Racing “Rexy” 911 GT3 R fought hard but came short of this year’s GTD Pro class wins. Other Porsche customer teams with both 963 hypercars and the 911 GT3 R added Porsche representation to the grid throughout the season. With solid finishes at Petit Le Mans, however, the factory hypercars continued a streak of IMSA dominance that will be tested again at the start of next year, with the Rolex 24 at Daytona taking place at the legendary Daytona International Speedway from January 21 to 25, 2026.

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Image Source: Porsche