Personally I quite fancy getting VAG scope running and going for a bit of a run. At least having speed plotted against time would give me 0-60, 60-0, etc. Although I'd probably want to strap my laptop down if I was going to really test the car!!
There's a few other things that can be done depending on what your car has got. Locking doors above 10mph, alarm beep and flash when armed, auto window closing, etc.