The engine’s potency has already caught the attention of IMSA officials, who docked the Valkyrie by nearly 15 horsepower in the new Balance of Performance released after testing at the central ...

With tools like car models and driver-in-the-loop simulators, Michelin can test tires virtually, achieving a level of precision that dramatically reduces physical testing requirements. IMSA GTP ...

Peacock 2:10 p.m., IMSA Michelin Pilot Challenge: Sebring Race, Peacock 3:30 p.m., NASCAR Craftsman Truck Series Practice And Qualifying at Las Vegas Motor Speedway, FS2 5 p.m., IMSA Lamborghini ...

Juan Manuel Correa will make his IMSA debut in United Autosports’ No. 2 in Sebring, replacing Garnet Patterson. He’ll drive in the remaining Michelin Endurance Cup races. At Era Motorsport ...

The IMSA Michelin Pilot Challenge GS class hits a milestone race number at a historic venue: Sebring International Raceway. As either GS or GSI, there have been 249 class races in history ...