Right now the two stage sedans can be purchased through Ampdraw hobbies (the shop at the race). The first batch we sent sold out in 5 minutes, but they have more from the second batch if you need them.
Both Josh and Mike ran IB cells. Josh told me his car was pushing a little so he had to use up more throttle to help steer the car. He knew he might not last because he had to run wooded to stay ahead of Mike. Blackstock's car was really good. It had to be to catch up after wrecking and being marshaled. It was one of the more amazing races I have ever seen.