I've done it in Vegas a couple times. It was pretty pricey IIRC..between $250-$425 depending on the car for 5 laps at the Las Vegas on a custom designed track. The guys who run it do a great job and were a blast to work with. They were constantly telling the group I was with to push the cars harder and get on them. I drove a McClaren fwiw and was walking around with a perma grin for 2 days. They also have packages where you could take the cars on the Las Vegas Speedway.