Looking good. I like the extra teef. You really get the impression he's had a few knocked out, yanked out to pay for gas, etc. Not such a big fan of the topknot though. Seems to me hair is going in too many different directions. To stand out that straight he'd have to be in a pretty serious wind, so all the hair should be going in close to the same direction. I'd let it turn down a bit, and maybe twist around to point more backward. He looks a bit like a speed freak to me anyway, so have the hair being blown back by the wind in his face as he hangs on for dear life to the side of the battlewagon!