Strange isn't it, I had a Lancia Beta coupe in the 80's for a couple of years. Had a fair amount of trouble with it, the head gasket went, a wheel bearing failed, rear shocks failed, exhaust and other things, which I put right as I enjoyed messing around with cars, before it succumbed to rust. But I still look back fondly at having it, even though it only did 22mpg.
Whereas now, if even the slightest thing goes wrong I am mightily peeved.
I had an 80s Beta 5 door hatch type thing. Ironically, rust wasnt the issue with it although corrosion was....anything alloy on it (brake calipers particually ) corroded like the clappers. I didn't have it a year, never had any other issues with it and it was already well used (In other words, a banger).
Leylands get a lot of mention, yes they rusted , some more than others but generally they were so basic, they just kept going.
1961 mini, brought it circa 1976, rust wasnt a big worry, it was bodily ok.
1965 mini countryman, brought circa 1976, ditto.
Morris / Austin 1100, a banger when I brought it...subframe made more noise than the engine.
Allegro, another banger, no real rust issues.
Marina, another banger, ditto.
Mini van, another banger, rotten throughout.
Maestro, brought when quite new, rotted out in about 6 or 7 yeasr.
Some Leylands were ok. I remember going to look at a Datsun 120y I think, a banger granted....rotten throughout. Walked from that one. Renault 5, looked at one for my brother, walked away, rotten.
We all love to slate Leylands and their like for some reason, but foreign cars of the same era didn't fare too much better.