I'm kinda not wanting this and wanting it, It would make CAD servers super fun.. But what about the idiots.
Screwing your bumpers and spoilers off, Popping tires off and making you shoot around the map like a pinball on crack, Shooting the horridly coded physical props into you at mach one making you slide all over the place, Spinning you into a wall at a fast speed making parts go everywhere in a shower of metal, Puncturing other peoples tires.
On the bright side, You could do the reverse.