well... stumbled upon this video while looking through things that had nothing to do with Ken Block, Rally VXLs, or gymkanah...
but I think this would possibly be the coolest RC vehicle on the face of the entire planet.
It would be really hard to create those tracks on such a small scale. I have seen them made for a Tmaxx before though.
I can just imagine: Rally VXL uber-tread attatchments! Now you can conquer anything with a rally car!