We went from a Commodore to a March 2009 ZR6 and love the change. We haven't noticed the dash rattle but the transmission clunks occassionally when cold, but this only occurs if I change from Reverse to Drive and I am still moving backwards (D'Oh). We went from cloth to leather seats and the leather is much easier to clean up after kids. Admittedly we have a NO ice-cream, chocolate or milk rule in the car. The suspension is great on the open road - we live 230 km from a city - and the passing of B-triples is a smooth and secure job. We should be able to drive to Brisbane and back which is a return trip of about 700 km on a tank, but the fuel guage and the computer's estimate on fuel left are about 100 km different, and as the last fuel is 140 km from home, I haven't really had the strength of character to test it fully. My only 2 gripes with the car are the rear airbags which tend to block the view when reversing (a friend with an ATX has the same problem), and the driver's electric seat isn't linked to the key, but the face-lift model has rectified this. Apart from this I love my car - apparently it gets washed more than the dog.