It depends greatly on the model AND on the country it was made for (the ones made for export were much better than "italian local market" ones). As (by now his

It depends greatly on the model AND on the country it was made for (the ones made for export were much better than "italian local market" ones). As (by now historical) anecdata I owned an Alfetta (2000, gasoline, "America") for several years (used 50% with my father) we made 250,000 km with the original engine, then we put an used (from a wreckage) one with alredy 66,000 km and drove it for another 100,000 km or so when we had an issue with the gearbox/transmission and the car was overall too old to be worth the repair, but the body was in very good condition (car was around 15 years old). Later I drove for a few years a 75 (bought used with already 90,000 km, "italian") and while I had no particular issues (engine and mechanics in general) up to the 150,000/200,000 km, the body had lots of issues with rust/corrosion after 6-7 years. I would not call any of them "unreliable", they needed some little maintenance, but I would say no more than other make/models of those years (those were the '80's and early '90's). Later Alfa Romeo became essentially "FIAT with another name" and reliability was essentially the same as the FIATs (rather poor, but not as bad as they are sometimes depicted).