I'm in the 'so what camp' here. My first car was a mini built via the 'G.O' system at Rover, brand new seam welded shell, full alloy cage with door bars, 4 point harnesses etc, 1380 engine built using David Vizards book, set up at Aldon automotive, 45DCOE, Kent 296 scatter cam, 1.5 rockers, incline big valve head, 4 bolt centre main strap, 138bhp at flywheel, straight cut drop gears, straight cut Jack Knight dog box, sounded like a machine shop coming down the road, not nice in traffic as nothing below 2500rpm, sounded awesome when hitting redline at 8,200 rpm. most fun I've had in a car, used to turn lots of heads due to the whining of the gears when pootling around town, 30mph meant 2nd gear to keep revs up.
Had car for 2 years, never stopped by the police once (drove very carefully and also had quite a bit of training on the track with it) and only complaint I had was my parents knew I was coming down the road as there was no suppressor on the alternator and it used to cause a snow storm on their tv :D