Later Mk4's had a variable ratio rack which reduces the number of turns lock to lock. IIRC this was across all models - not just high spec ones. I believe they can be retrofitted to earlier Mk4s and Mk3s.
More info please. Mines an early 1990 and the lock-to-lock is borderline silly.
I've pulled away sharp only to have to stamp on the brakes to give me time to wang the wheel around.
Just something I'm having to live with at the moment. Maybe a small 12/13" wheel might help..