Audi leads First Practice by 0.047 over Porsche
Just where they left in Mexico, the battle between Audi and Porsche continued today at Circuit Of The Americas with the Audi R18 No. 8 of Di Grassi, Duval and Jarvis managed to put a great lap at the end of the session to clinch the fastest time just 0.047 seconds over the Porsche 919 […]