I came here to say just this. I used to belong to a hobbyist group that would reserve track time for races. They were timed trials for safety and had tow trucks and medics on standby. The best was when they watered the track in the winter and let it freeze overnight. Those were the slowest races I’ve ever seen. In addition to being safe fun, they taught how to handle your car in extreme situations.

Here’s an example race: www.onelapofamerica.com/#!HOME