Teenage Mutant Ninja Turtle Van for derby races. This is a 2 piece design with a van body shell and then a base. This allowed me to add lights and an arduino to the van so it had blinking lights.There are 2 versions of the base the regular has all 4 tires at an equal height, the "lifted tire" version has one of the front tires .100" higher than the others. The theory there is less rotational inertia, will allow the car to go faster. The headlights support 10mm LEDs and the taillights support 5mm LEDs. I did white for the headlights and red for the taillights, it looked really silck. The body shell should snap onto the base. It wasn't perfect on the first try but close enough, I think I used a bit of hot glue in the slots of the base to dial in my fit.