Based on a design I saw on TFW2005 Radicons... a mistransformed and repainted Topspin. This was going to be used for an armored version of Roadbuster, but I thought this would be a better use (and cheaper than buying a real Leadfoot).
I used strips from a toothpaste tube for his beard (which you can't see anyway behind his windscreen chest ) and his boosters came from the feet of a G1 jumpstarter. I'm not sure which one... all I had left of it was the legs. The side machine guns came from DOTM Laserbeak.