very true... so either way its going to need a chase vehicle with 2 guys... one to drive and one to drive the rc car....
so why not film from the chase car with a camera boom?...
I know a lot of guys film rc cars with a motor bike.... they just get a guy to sit on the back with a camera boom... u could allways do something like that??? but I think for the speeds u guys are doing a car might be safer and the camera guy wouldn't have to worry about leaning into the bends...
ultimately u want the most stable platform for the camera....
and ultimately it would allso be good to change the viewing angle... ie pan and tilt.... so far the best way ive seen is a camera guy, good old manual labor....