Looks cool but Fiat are not renown for the toughness of their alloy wheels. My Panda 100HP has 15" with 50 series tyres (OEM is 45 series) but the first proper pothole buckled a front wheel.
There is a reason for that, "that the front wheel buckled in a situation like that".
Now the wheel is the first to go, would the wheel be strong, then your suspension arms would be the one that go's.