I have two of these now. I have the 2nd as a stock back up, that I haven't used. Apart from using the 2nd shell which I wrecked after bashing a tree with it, the original has held up well considering I go hard on it.
I have a have a broken parts list as follows.
Hinge pins on the front arms x6.
Front shock towers x2 (can be straightened)
Front shock pins x3
Inner tire foams water damaged and replaced. (The car was totally submerged and kept going).
Steering ball holders x2.
Shell body x2
That's about it.