I got some parts from Aberrant and they coincidentally are all highly suitable for a Mad Max Pursuit Special, go figure...
So I've tacked some parts ontot he model. This is obviously just a mock up, but when I do the model, I think I'll cut the trunk lid off in order to better set the gas tanks in the back, that way they sit lower and more, inside the body.
I also, in keeping with the game, add an auto weapon like the gat here, and some type of armor, at least for the windows. I plan to keep armor off the body however.