Alloys - non standard/optional extra

[PlopHole]

I have a 500 sport which comes with the 15" sport alloys (fitted as standard). But I have since changed them to the 16" Abarth alloys (fitted as standard to the Abarth).
I'm slightly confused as to whether or not my insurance policy should state that I have:
option 1: "Alloy wheels (optional extra)"
or
option 2:" Alloy wheels (non standard)"
I'm confused because the car has alloys as standard, but not the ones I have. They're not an optional extra. And they're not really after market either.

I'm probably making it more complicated than it actually is, but does any one have an idea of which option I should go with?
Thanks.

 

[Most Easterly Pandas]

My Stilo has Fiat Alloys, none standard on its spec, but were a Dealer option when new.

Mentioned this to my Insurance company and they said that they were ok with them and didn't need to be declaired, as they origonal Fiat Alloys.