Hi John, I've got your pm open at work btw - just not pressed send
Ahem... breaks - front shock shafts are exposed so can break, I've never done one, neither has woody, but mrs.woody drove into a breezeblock and broke one. I think they are fine personally.
The rear camber link can bend in certain circumstances... mine got very slightly bent after some horrific offs where I managed to cartwheel 4/5ft in the air. You can get a new version which is stronger tho.
rear wishbones can break which also bends the inner hingepin - but it doesn't really matter since it still works with a kink in it.
Centre pulleys can wear out especially if the belt slips - but also there are the big belts / pulleys. The drivetrain is strong but it's the little things that are hard to get hold of when they wear out - like cvd parts and diff rings.
front and rear shock towers are sturdily mounted - so a heavy crash can crack either of them - they last a while when cracked but the front goes eventually.
ball cups wear out fairly quickly
the body shells crack at the back after a while because of the 90degree angle.
It's a nightmare racing this car at a National since currently theres no support - so if a pulley goes and you don't have a spare, it's hometime.. Thankfully theres a nice community of owners who help each other out, but it would be nice to have a shop at Nationals support it.