Crappy pic but here is the street legal sprint car (note the license plate on the front).
Really didn't do a whole lot to the body and chassis. Suspension modified for neutral steering and handling. 4.3L GM V-6, Powerglide, truck 10-bolt rear axle. I will probably see him later this week and will ask some more questions but I don't remember saying he had to jump through any hoops to get it licensed, though I believe insurance might have been an issue.