5 years and £10k:
3 different engines, 2 different gearboxes, 3 different exhaust sytems, 2 different blowers, 3 different sets of carbs (plus 1 injection system), 2 different brake set-ups (and the third on the way), 2 methanol injection set-ups, 3 nitrous kits, a few pairs of rear tyres. Endless fun!