Porsche Penske Motorsport continued its unparalleled endurance racing success with a dominating one-two finish at the 12 Hours of Sebring, the second race of the 2025 IMSA WeatherTech SportsCar Championship.

The No. 7 Porsche 963, driven by Felipe Nasr (Brazil), Nick Tandy (UK), and Laurens Vanthoor (Belgium), took the win, having already won the 24 Hours of Daytona in January. The No. 6 sister car, driven by Matt Campbell (Australia), Mathieu Jaminet (France), and Kévin Estre (France), came home a mere 2.239 seconds behind, making for a stellar result for the Porsche factory team.

A Battle Against the Elements and the Competition

Under strenuous conditions, with the track temperatures reaching 31 degrees Celsius, the No. 7 Porsche 963 took the lead within the first 15 minutes, driven by Nasr. Although the team briefly lost the lead, they took back control later in the evening, demonstrating incredible resilience and strategic prowess. The turning point came after the ninth and last yellow flag, when Nasr repelled hard-charging competition in the final 31 minutes to win Porsche’s 19th overall Sebring win, its first since 2008.

The No. 6 machine also put in a strong performance, remaining in contention for much of the race and clinching a one-two win for Porsche Penske Motorsport. This success further entrenches Porsche’s lead in the manufacturers’ championship, with both of its driver crews now taking the top two positions in the overall championship rankings.

Technical Excellence: Porsche 963 Specifications

The Porsche 963 LMDh prototype has emerged as the best car in the GTP category since the rollout of the new regulations.

It boasts:

• Engine: 4.6-liter twin-turbo V8
• Hybrid System: 800V battery technology
• Total Power Output: 680 hp (500 kW)
• Torque: More than 700 Nm
• Chassis: Multimatic carbon fiber monocoque

Customer Teams Make Their Mark

Customer squads also highlighted the competitiveness of the Porsche 963. Proton Competition took sixth, while eighth position was taken by JDC-Miller MotorSports. Swiss pilot Nico Müller competed in his first outing for JDC-Miller in the Porsche 963, putting up robust performance despite a late brake disc change that lost precious seconds.

GTD Pro Class: AO Racing Wins with 911 GT3 R

In the GTD Pro category, AO Racing won its maiden major endurance racing victory with the 911 GT3 R, lovingly nicknamed “Rexy.” The crew, composed of Laurin Heinrich (Germany), Klaus Bachler (Austria), and Alessio Picariello (Belgium), produced an exemplary performance to win by a margin of 4.371 seconds. In the GTD Pro class, Proton Competition placed eighth.

GTD Class: Challenges for Customer Teams

The Wright Motorsports team experienced several setbacks, including penalties that lost them valuable ground, finishing fifth in the GTD class. The Iron Dames team finished their race in 11th position, their second IMSA appearance in the 911 GT3 R.

The IMSA WeatherTech SportsCar Championship now makes its way to Long Beach on April 12 for a 100-minute sprint race down the streets of Los Angeles. With momentum well and truly in its favor, Porsche Penske Motorsport will look to build its dominance further.

The Bottom Line

Porsche’s landslide victory at Sebring reasserts its history in endurance competition. The work and customer team performance confirms the technical excellence and racing heritage of the Porsche 963. Through the remainder of the season, Porsche’s challengers will have a stiff mountain to climb to unseat the current champions.