i drove the fiat 500 yesterday.    
pretty much what i expected. pretty cool little vehicle. very responsive wheel and braking, a tad underpowered, but I think FIAT achieved what they wanted from the car. It gets great mpg, its stylish, great features (bluetooth, aux input, usb input), comfortable ride, does well at speed (even with 3 passengers) and it competes well with the cooper. again, this was the base model, i cant wait to see what the abarth does with possibly 50% more power.   
im probably forgetting a ton, but it was overall a very positive experience.