2 common issues causing oil leaks.
The same method to resolve the same common leaks across all abarth models.
This being demonstrated on my Abarth punto evo.

Replacing breather pipe from intake to oil segregator with flourolined silicone pipe.

https://www.ebay.co.uk/itm/Silicone-H...

Replacing O-ring under oil segregator into the rocker cover which perishes causing leaks.

Cleaning out the oil segregator.