Thanks for another great review! You saved me some trouble, since I was planning one for the same car. :)
The floating rear axle amazes me. It *should* lead to the crown gear being chewed to mush, but I've never actually seen it happen, and I have several of their ProShock cars. It does seem to lead to energy loss in the drivetrain, though, as none of these cars is ever as quick in a straight line as their solid-axle cousins. The NC-9 should make this car quicker than it is -- every other NC-9 car I have scoots. But the car's drive is fun, which is exactly what I want from a rally car.