One of those million dollar Kirkhams would be great. However I would be afraid to drive it.
Other than that I would love to own a vintage racer, a real vintage racer. Maybe #26?
I also love a 65 Chevelle, brings me back to my youth with short track roundy rounds. Everybody damn near ran one.
http://www.07racingcollectibles.com/...65chevelle.jpg