Nothing has gone wrong with the car.
The car is fast and it sticks well to the road.
If I could change one thing it would be the interior.
I bought fiat cinquencento sporting new in 1994 from a uk dealer. since than I found that it is expensive for parts. rust is a problem. my clutch cable keeps snapping without warning lasting an average of 18 months and is relatively expensive to replace. I was told that it was because the car had been adapted to left hand drive so cable had to stretch too far.