Ahhh a wheel question *comes out from his hole* Make sure the PCD or stud spacing is for fiat. Its different from virtually any other car. don't think just cos its a 4 stud it will fit. I've had 185/60/14's punto alloys fitted for around 6 months now. They look great and give superior grip round corners etc. They didn't need spacers infact if they had spacers they would rub on the outer wheel arch. But to get them on I had to mod the back suspension and grind a hella'lota metal off. But its all worth it and I've had 5 ppl in the car without any rubbing. Theres someone on here who fitted 15" too with low profiles but they cost more than your pandas worth XD
yeah im the one with 15's with low pros. to be quite honest its not worth it...yeah it looks good but its not a big enough engine to handle 15" wheels plus i had to do alot of grinding to the rear and tapping the inside lip off the arch. 14's is your best bet.