Coming to your "speed is everything, why not" store near you...
Buy your A8.
Access Enhanced Launch Mode
Enter your tire model, size from menu.
Enter road surface from menu: Street, track, prepped track, etc.
Computer knows temperature, other pertinent ambient conditions.
Now you're set.
Press Execute Button...wheel straight, gas and brake pedals to the floor..light on dash says "ready to go"
Release brake and hold on!
The car does the rest til you release gas.
You, the driver, are simply the on/off switch.
Computer knows best, no skill required...fun!
Hell, a capable computer scientist could probably make this an aftermarket mod.
Why not?