Not sure mate, could try blagging they came with the car and you wouldnt have known if they where standard or not, unless you have told your insurer it doesnt have alloy wheels?

at work at the mo we have a saxo vtr, compleatley standard apart from a piper cross air filter.. now this car is a compleate write off no questions asked (side damage, rear subframe broken in half wheel, hub, brake etc all off the car!)
the claim has been put on hold due to the air filter and it looks like the insurer's are trying to not pay out because of the air filter... make of that what you want.