Faults:
Bought car at 47,000 miles and two years old; I've done 75,000 miles in 3 years.
Rev Counter has a funny every so often (3 - 4 times in 3 years) where it stops working, then operates with low readings etc, and finally a day or two later is back to normal - I suspect muck on the sensor (?) - but it's not life threatening is it.
Dashboard lights gone - behind heater etc - and nigh on impossible to fix.
Bonnet and Boot lights gone - boot one fiddly to keep in place.
Got that tiny spot of rust at seal between wheelarch and inside of rear door.
Leak on fuel line within carb unit - the Vauxhall man was a little unhelpful given that the car uses two sizes of such rubber hosing - maybe he was also having a bad day.
Sometimes can be funny about going into reverse from a cold start.
Stereo (Grundig - as supplied) occasionally turns itself off - maybe due to dirty contacts
Frozen fuel in carb jets - That cover supplying warmed air to the carb above the exhaust manifold is vital on a cold very windy day (on the M42) - mine had broken one of the mounts and so was removed - later replaced.
General Comments:
Given the 75,000 miles I've done I think the car is sound, reliable and has been cheap to maintain. The car's done 125,000 miles (or thereabouts) and I've no plans to replace it until I have a major failure (like the engine expiring) - and even then a replacement recon engine plus fitting can be cheap in comparison to a new car - if you've had your moneys worth from the car.
The 1600 is ok even at 100, but more power could always be useful.