Ive got an early scooby and the v6 - the v6 is more fun (read challenge) to drive fast. The scooby is very easy to drive fast, is more practical and consumes about the same amount of petrol.
Lots of tuning options for the scooby as well, extracting more power from them is a relatively simple and common thing to do. Not sure about the comment above about clutch replacement, mines done 70,000 miles on the original clutch - the main wear items appear to be discs/pads - its woefully underbraked compared to the v6.
If you dont overdue the tuning (i.e. try and extract 1000bhp by attempting to up the boost to 3 bar!) they are reliable and strong - the only thing thats gone wrong with mine is a burst top radiator hose.