I was a part of the Riverside team when that car was built. It was totally a one-off and there was never plans for any other one to be built, or for the car to run more than one to 2 seasons. GM paid to have the car built as a test mule to take to the wind tunnel (which they did twice) to gain data for development of the Lumina, and it was OK'd for use only in ARCA and never to be used on the superspeedways, only on the midsized tracks (wasn't stable enough to run those tracks anyway). The car was areodynamically superior to the other cars at the time, and was fast on it's own, but was very unstable around other cars due to the short trunk lid. I don't think the car ran more than a half dozen times or so before getting destroyed in a wreck at Atlanta in which the driver of the other car involved was killed.