In my 1983 City:
Once I overheated, on a hot day, after some steep hills (no temperature gauge in that mini, so the water boiled and exploded out the radiator , a guy with a mini appeared, as if by magic, and we tried to top up and get her going but no joy, so got towed to a garage, blockage in the system).
Once with a dodgy wire from the coil, AA fixed at the side of the road.
In my 1988 City:
Gearbox went.
I don't think much could have been done to prevent these, I try pretty hard to keep my mini well serviced and I do think that helps, but you can't always predict that something is gonna break.
Edit: actually, I s'pose installing a temperature gauge might have helped with the first one, if I'd have stopped before the water boiled I guess I could have let her cool down and gently nursed her home, but not guaranteed.
Edited by minimininut, 03 November 2010 - 07:58 AM.