I had a 156 V6 part exchange that had 148,000 miles on a 98, R with FARSH. The bonnet was badly chipped and leading edge of roof was starting to corrode, it had had a gearbox rebuild at 125k due to knackered syncros, two throttle control units, 3 cambelts, all new suspension bushes/links front and rear. Fuse box cover was hanging off and sunroof wouldn't work. Apart from that it was great!!
I drove a (lease) 156 JTD from 122.000 up to 154.000 kilometers (about 100 k miles). It was a diesel, so hard to compare.
Anyway, in those six months I had following problems;
Broken airco pump, broken power steering hose, worn out front suspension arms, fuse box cover that came off on every big bump, HUGE rattle in right side backdoor. Exhaust & clutch were kept original.
Hmm, got to get that cambelt changed early..Bumped into a guy with a v6 last night at Halfords, who worked at Alfa main dealers who said it was frightening how many came in with blown engines at 65k. Not sure about his stereo system, lets just say the bass box (if that is what they are called) took over the WHOLE boot...deaf now.
Why do Alfa recommend the change first at the 72k service? It seems liek suicide or v. risky strategy to run it up to that mileage with out a change.