I have a 962.5td estate and in my opinion the performance is reasonable for the size of car (nearly 2 tonnes). Mine gets an oil change every 3.5-4k with magnatec for diesel. Its a great long distance cruiser with just a little noise when cruising around the 2000 rpm mark (60mph)
Some passengers have been impressed with the performance, infact some are suprised its a diesel as the engine gives a smooth power delivery. I belive it could do over the 100mph mark.
Problems that I have had with it so far have been
1, leaking coolant hose due to a pinhole that opened when being driven but not idling.
2, worn front anti-roll bar bushes (vauxhall garage stung me on that one as they said it was the front springs. do not go there any more
)
3, Front and rear shocks, which I got a new set of 4 for under £200.
4, Handbrake adjustment as the plate on the rear wheels is quite thin and does bend after time, fixed this by getting a small steel plate welded over it.
5, Rust on the two rear doors and a few other spots.
6, recently some of the injector return pipes had split as the rubber had started to go hard and brittle.
Would I buy another, yes as so far its the only car