Audi Sport Quattro S1 vs Porsche 997 GT2 – So different but same final time! – Hillclimb Monsters Acceleration & Sound Drag & Track by turboandstance - November 5, 2020 Audi Sport Quattro S1 vs Porsche 997 GT2, do you think it's an impossible challenge? Well...no, during the FIA Hill Climb Master Race in Gubbio, Italy, both cars set the same time! The Group B Audi is a replica made and developed by ProSpeed and brought to the race by