yeah i'm a bit pissed over it too.. but panel beaters its one excuse after another, and then one day when u least expect it they say "hey, your car is done".
The main concern in the r33 is the brake fluid.. up nebo the other time i was getting brake probs on the way down.. bit of a worry. Gearbox and diff is fine, but time they were changed. I mean i've done 30,000km since i've had it, and they have never been changed.
Oil, sparkplugs and the filters i've changed regularly.. but not the other more longterm stuff