Of the major German automakers, Audi may not be the first one that springs to mind for revolutionary automotive innovations.
Despite having 1,720 horsepower at the wheels, this twin-turbocharged Audi R8 is a sitting duck for cars that are ...
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BMW M5 battles Audi R8 V10

A modified BMW M5 lines up against a track-ready Audi R8. The cars start side by side in a drag race with a full audience.