very cool! other car companies had similar concepts. I vaugely remember seeing a cadillac that was nuclear powered.
There are alot of terrible flaws, though nothing as terrible with cars today. One company being VW, they're engines contain some kind of metal that, when the car cathes fire, you can't put it out.
http://www.bing.com/images/search?q=U.S.+Army+Powered+armor&view=detail&id=D95CD7B2081E78B6F8CB073F3E85992872FA361F&first=0&FORM=IDFRIR
Thats the link for what our nations soldiers of tommorow are going to look like. Good lord i hope fallout didn't predict the future