Mk IV GTI (all) = no fun, I have drove the 115bhp, 180bhp, and V6 4Motion and all are too boring.
Mk3 GTI - 16v/VR6 are fast, but 8v isnt THAT slow i found a 0-60 time of 8.7secs standard
Mk2 & Mk1 - tin boxes compared to newer GTI's and look horrid (no offence) but are supposed to be excellent to drive and throw about.