Late last year, reader Chris Ostberg sent in a video showing his two-year-old daughter enjoying a ride in an Audi R8. Here's a look at Ostberg's hotter ride — a twin-turbo 2001 Audi S4 that's been to the Nürburgring and back.

Autocross, drifting, snow racing, taking it on the autobahn to 180 mph — there's not much left for Ostberg to do with the S4 outside of jacking up the body a few inches and going off road. Thanks to a launch control that puts the S4's engine idle at 4,400 revs when stopped, Ostberg says he can snap off 0-60 mph times of about 3 seconds — or give a co-worker a new experience.