Only took about 1 minute. Wait till you see it from my end as skid marks don't translate over the internet like it does locally. By about 5 minutes it looked like I was going to burn a whole in the ground it was so black on the center ring. Eventually it started to get a little off center maybe 10 minutes in.
Most of the cars in the right spot will do donuts forever, once you straighten out the wheel most cars last 30 seconds to a minute of sloppy donuts. This car will do it forever in some spots until something hits it or it hits something. As a bonus it makes a spiralgraph.
Don't worry thats how the car looks stock griff i have since painted it and removed the green neon.