Redline...I wonder why nobody has mentioned it.Allthough it doesn't work on an rp system it's still post apocalyptic and it has got propably the meanest looking vehicles I know.
It might be a little hard to find though.Try it
Fallout 1.Allthough Fallout 2 had more stuff and places it seemed to miss something..I think it was the thing that Fallout 1 places where more rough or something in that way.