Long time ago, I had a `67 or so Fiat 850 special. The only three troubles I ever had with it was: keeping the stupid fan-belts on when revving the engine really high, the occasional random disintegration of the rotor in the distributor and lastly, the fact that it never was a Babe-Magnet
.
So, all in all, my experiences with euro Fiats (dad had a 600, he also had a real Morris Mini, might have been Austin Mini, that was good for a Brit car.) have been pretty good.
If I was seriously looking to buy one now, it would have to be the Abarth.
Here, some modified Fiats.