I had a late 70’s in the US. Tough to get a mechanic. Very underpowered car, much less a sports car. Look at the ratings for the recent 500 model in the US.
The earli, boxy-lookinger 500s, like the one I have, won't exactly snap your neck back when you jump on them, but they are extremely reliable and are a surprisingly good ride for a little "econobox." Great gas mileage too, which matters when gas always hovers around $7.00 a gallon. . .
Did you have one of those tiny 500s with the 2 cylinder, air-cooled engines?