I know it's got a spoiler, fenders and a roof. But I would think Tony Stewart has had a fair amount of open wheel success to be included in this post.
24 Hours of Daytona, Daytona International Speedway, Daytona, FL, January 28-29, 2006. If you've never been to a 24 hour race, I would have to say it's something to do at some point in your life.