
How much will the Porsche 963 have to be slowed down to bring back exciting competition in the IMSA SportsCar Championship? Following the 1-2 finish at the 12 Hours of Sebring, officials are bringing out the heaviest hammer in their arsenal.

How much will the Porsche 963 have to be slowed down to bring back exciting competition in the IMSA SportsCar Championship? Following the 1-2 finish at the 12 Hours of Sebring, officials are bringing out the heaviest hammer in their arsenal.