The first american to go over 400mph
http://www.macsmotorcitygarage.com/2013 ... on-wheels/
He brought the roller skate to Indy a revolutionary car using smaller wider tires. One had a titanium chassis.
![Image](http://8w.forix.com/indy/mg-indy63.jpg)
He also tried 3 wheel steering that wasnt discovered until Colin Chapman looked at the car.
http://8w.forix.com/indy64-before.html
He also did drag racing, Desert racing, and was one of the pioneers of stadium super-cross racing. He and his wife were murdered by their partner in the venture.