I have one of the earliest 16valvers with the quarter windows and runs on optimax only otherwise it pinks like hell and dont like it. Has been running fine and has done 147 thousand miles n ow. Never let me down. Spent a lot on it when I bought it though. When I bought it it was a dog, the floor was wet through and I bought it pretty much in the dark (note:don't do this!) but I only paid 400 notes for it. My advice , check for water leaks allover, check arches coz them arch covers can hide a multitude of sins as I found out. If its got seat covers on, check all the seats match and that they're not f**ked. Try and get one with a leather interior for the price your willing to pay, you will be glad of this later as I found out that the leather interiors that people are selling are more expensive second hand than what I paid for the car. If its got big wheels on check driveshafts and gators coz i find that bigger wheels tend to wear these areas out more. Anyway theres lots more but i got to go, so good luck
regards
marco