Head gasket (twice!).
Heater matrix.
Fuel pump.
Needed a whole new flipping engine two months ago(92,000 miles)!
Have had a few problems, but what a little rocket!I've had no problems at all in the performance stakes with my little AX GT.
The petrol is cheap, the insurance is cheap, the car is easy to drive and when that twin choke cuts in: whooosh!!!
My AX GT is on 103,000 and has only needed a head gasket, you must have been unlucky.
Mine made 210000kms then I rebuilted the engine. but it was 210000kms always speeding :)