Sounds obvious, but what are the best methods of keeping the car in top notch condition? I usually wash and wax mine every couple of weeks and spray the inside arches with waxoil to prevent rust. Problem is, I cant properly clean the inside arch as its so inaccessable (and the brushes on the market are frankly crap). Aside from jacking it up and taking off the rear wheels, whats the best way to do this?