They are poo
no real history, lower spec, run on 'funny' fuel, crappy plates, poor resale value etc.....
I test drove a local Z today which was on a 53plate, my god there was a ridiculous amount of rust in the engine bay and underneath much like the one i looked at a few years ago (thought it was just that car ) If im honest i wasnt impressed with it on the road test, seemed so underpowered and 'lardy', brakes were very good though!
Maybe having a change of heart now