And that's the crucial bit - even the Abarth 500 isn't much faster than an AMG Merc or an Alfa 156 GTA on twisty roads and is certainly no match for a well sorted Subaru or 205 GTi, but it feels very fast. And if you can have as much, if not more, fun at a lower speed and still come out at the end with a big grin that's better IMO because it's that little bit safer.
Likewise it won't keep up with a V8 Merc or an M series as it accelerates towards triple figure speeds on a motorway, but the speed limit's 70mph, so who cares? And it's actually quite nice to drive on a motorway in the right shoes, though a normal 500's seats are more comfy on a long journey than either of the Abarth options.