Audi S5 VS BMW M5

JUST FOR THE RECORD, WE DID THIS JUST TO SEE HOW THE CARS WOULD COMPARE. SO DONT SAY BMW THIS OR AUDI THAT. 2 DIFFERENT TYPES OF CARS GOING AT IT FOR F-U-N 2008 S5 mods: AWE exhaust cat back 2004 M5 mods: custom exhaust