Nothing.
We bought this car to go exploring NZ on holiday, and have since moved here, so we kept it.
We paid $1000 for it, and that was 2 years and 60,000kms ago.
It has had regular oil changes, and new tires - that's it (time to do the cambelt!!)
Everything works (air con, cruise, power roof/windows etc.)
Bought excellent condition matching pair of front seats for $25 from a wrecker's yard - the old ones had cigarette burns in them.
If it died tomorrow, I'd cry, but it wouldn't owe us a thing. It's been fantastic, and great fun to drive.
Totally agree, best car I've ever had, trying to buy a spare car for the wife. (spares parts in the future)