I did it at Laguna Seca in February. It was a lot of fun. Would have had 3rd place for autocross except for one cone. The Head to Head autocross in the Jeep Grand Cherokee was a real kick. Lead follow in the Challenger, 300, and Charger around Laguna Seca is a lot fun as well( hard to get used to Auto power delivery and intrusive nanny devices) but the best part was the Viper Ride with a professional. It was an absolutely incredible experiance. Their gas, brakes, tires and cars, but you get to have all the fun!