On the 2.4TD versions watch out for lack of power from the turbo.
You should be absolutely flying by the time you reach 2000 rpm but if the ecu has a fault it will chug along (like mine). You can remedy the situation but putting in the clutch, letting the revs drop, and then gently putting the clutch back and uping the gas.
If you then find that you've suddenly got loads of power, then the the ecu has a problem...
Other than that it is a fantastic car - watch out for a sticky boot handle... it sometimes stays stuck on the estates.