Now, more than four decades since its introduction, we thought it time to try and pick out the best of all. We parked some generations, as we knew they weren’t up to scratch: sorry, Mk3, Mk4. The Mk6 was also too similar to the Mk5, so pointless to include. We thus had the Golf GTI Mk1, Mk2, Mk5 and Mk7, and a day at a rainy test track to find out which was the finest.