Actually I think I found my game already, I am using a modification of Rush N' Crush, you can download it free from BoardGameGeek. Basically it is a Mad Max style game, but I plan to alter a few things to change it to a more Pod Racerish setting. The game will be build on 1'x1' and 1'x2' tiles.
And Manic that'd be great, let me know what your son wants for 'em.