So, in some dark future, they got a little more serious about the rules in the bumper-car attraction. That's where War Pig comes in.
So I started with a 1/20 Laputa (Castle in the Sky) Flaptter. For those not well-versed in the animated works of Hayao Miyazaki, it's a little one-two man ornithopter (flapping-winged flying machine) that is nearly a snap kit - pretty simple. I cut the bottom away, and built a rubber "bumper" skirt from Super Sculpey. I also added some aluminum miniguns that were meant to upgrade some cartoony tank kits, and a leftover seat from a Wallace and Grommit sidecar.
The rest was all paint and minor scratchbuilding.