It was pretty fun to engage the launch thingee. You BURY the brake pedal as hard as you can and then bury the throttle, the things we were taught never to do. RPMs come up to a set point depending on ambient temperature, engine temperature, tire temperate, etc., usually around 1800, then you let off the brake, and the car shudders a bit as the tires try and bite and catches and you're off.
The tires get replaced after one day of track, at some $450 per.