You guys realize this thread is a year old, right?
We test drove a regular 500 since the abarth wasn't out yet and it was ok. Ended up getting a super clean 08 MCS with low miles instead. It gets an easy 32 mpg when having fun with it and will do better when I keep my foot out of it. No problems with it either and would keep it for a long time but we are planning on a kiddo this year so unfortunately it will probably have to go.