The new addition to the Grand Touring Prototype category will pit a roaring engine against a field of hybrids as the prototype platform from the WEC Series makes its IMSA debut.
IMSA officials have already docked the Valkyrie by nearly 15 horsepower in the new Balance of Performance released after ...
The famed concrete surface and the notorious, legendary bumps of Sebring International Raceway greet the IMSA WeatherTech ...