Not that much considering its age.
The drivers side central locking solenoid went.
Fan belt.
One or two interior lights went.
For its engine size this car is seriously quick.
Say "good bye" to many hot hatches with a 1400 or 1600cc engine, this car will eat them.
Lacks top end power though, only a 112mph top speed.
Also it's a bit noisy, but that's due its light weight construction.
The electric windows, central locking and other bits are a bonus.
The handling is pretty hot too...
Thats the good thing about the GT... it's so light it eats most hatches for brekkie! It does have a poor top end, but that's due to the short gearing...
Check out my AX GT site at: http://members.tripod.co.uk/axgtworld/gtworld.htm