Not too bad
I bought my 1998 Holden Commodore S Pack supercharged V6 4 years ago at 90,000kms. It has 150,000kms. Here is a list of what problems I had:
I had a starter motor that was noisy.
Have changed 2 trans cooler pipes.
2 rocket cover gaskets.
Reconditioned power steer pump.
I can tell you what goes wrong on VT & VX Commodores:
Rear shocks leaks.
Tail shaft seal.
Head gasket leaks.
Rocket cover gasket leaks.
Power steering rack leaks.
Power steering pump leaks.
Sump gasket leaks (not too common).
Engine mounts broken.
Stabilizer bar bushes split or bent rod.
Rack boot split.
Wheel bearing noisy.
Transmission lines leaks.
Heater tap leaks.
Would you buy another car from this manufacturer? Yes
Review Date: 28th March, 2007