Audi S4 v Audi RS4. Does Supercharging Rule? - /CHRIS HARRIS ON CARS
Can REVO Technik make a raggedy old S4 match the gorgeous new RS4? Drag race to find out.
Audi S4 vs Stage 2 335xi
My friend let us film his 335xi with a stage 2 Dinan ECU also his brother has a stock Audi S4. More videos to come!
Mustang GT 5.0 vs Audi S4 Tuned - 3x Races
Camera guy messed up on the last race - started video taping 2 seconds after they took off. Otherwise pretty good races, both cars are pushing similar power, it just depends who gets a better start. For the record Mustang was automatic also.