Let's say that you were rolling around Shift-S3ctor's Airstrip Attack 7 in a twin-turbo, V-8-powered BMW M5. And let's say that for your half-mile run, you staged next to a plain-looking, white RS7. If you hadn't been paying attention in the pits, would you have felt pretty confident about pulling out the win? I mean, with an M5's stock 0-60 times in the mid-3-second range, and stock 0-100 times in just over 8 seconds, that's a pretty fast ride. Add in a few mods and you've got yourself a giant killer.