The prototype classes in the World Endurance Championship and IMSA WeatherTech SportsCar Championship have more differences than you might think.

The new addition to the Grand Touring Prototype category will pit a roaring engine against a field of hybrids as the ...

BMW will not field a third Hypercar entry in this year’s 24 Hours of Le Mans, with motorsport boss Andreas Roos stating the brand will ‘focus on two cars’ as it navigates a packed month of June with ...

Genesis announced last December plans to enter the top level of endurance racing with a new factory team and race car. On ...

IMSA also announced power cuts to prototypes that included a 12-horsepower reduction for the Porsche 963 and eight horsepower for the BMW M Hybrid ... braking against the LMDh entries, which ...

This choice is a major shift from the strategy used by players like Ferrari, Porsche, and BMW, all of whom ... and the GTP class in IMSA's top series. The LMDh rules use a spec hybrid system ...

In the first two seasons, the exchange between the two series was only one-way with four of the five manufacturers building LMDh entries choosing to compete in the WEC and IMSA—BMW, Cadillac ...

While manufacturers such as Porsche and Cadillac have brought their LMDh cars to the WEC ... during their first season in IMSA’s premier division. The dawn of the new GTP era two years ago brought the ...

the featured prototype platform in the WEC Series and 24 Hours of Le Mans) will race in GTP against the LMDh prototype platform that is featured in IMSA’s premier category.