one thing i found with the rs4 (i have the rtr 3 evo) is that the back hubs arnt the strongest, i cliped a curb drifting n it mashed one of the rear hubs and bent a dogbone like an s shape!
im not going to be able to get parts till after xmas and ive tried epoxy but hard corners crack it up again
so yeah other than that its a sound car..
lew