As has been stated, any car after a certain age will have issues. I've just bought one (51 reg) and it needs thermostat change and some (very minor) cosmetic work. Depends how much the car is going to cost -- bought mine for peanuts, so can't really complain if I have to spend a bit.
I'd say go for it -- except for the fact you can't find any history. Is it a private purchase? How come there's no history? I'd be concerned about that, myself (when was cam belt changed last is biggest concern... no, wait, was it stolen/written off, is a bigger concern!).
That aside, great cars, no less reliable than anything else. Depends how well looked-after it's been, at the end of the day.
If you can play a guitar and harmonica at the same time, like Bob Dylan or Neil Young, you're a genius. But make that extra bit of effort and strap some cymbals to your knees, suddenly people want to get the hell away from you.
- Rich Hall
Gone but not forgotten - 164 2.0, 164 Super 3.0 V6, 156 1.6 T.Spark, 156 2.5 V6...