Is RS6 faster than E63s?
Crazy, I know. Pull 200 pounds out of the Audi, and these two would be dead-butts even, I bet. The Mercedes’ half-pound-per-horsepower weight advantage really shows up in the quarter mile, where it does the deed in 11. RS6 needs 11. The Blackwing’s 3. M5’s 3. RS7’s 2. BMW may have the power advantage, but its tremendous mass counteracts that.