Big end bearings seized.
Head gasket.
Water pump.
Cramped back seats.
If you want a GTI, make sure to get one in between a Y and B reg. These models have a DX engine with bigger injectors and a bigger cylinder bore than the other models.
Out performs other car in its class.
Seating position is low to the ground, giving you a sporty feel.
Handling is OK, but you will need to get a decent lowering kit.
Goes like stink is probably one of THE best comments for the Sirocco GTi. Well worth buying, but hard to get hold of a good condition one.