Originally Posted by parapaul
I think the issue is that most people would fit smaller alloys to allow for narrower winter tyres. If it was just a tyre change, it wouldn't be a problem, I'm sure.
BMW winter wheels are slightly narrower and mounted on 17" rims; the same wheels as the standard SE version of the 3 Series.
In essence my insurance company want to charge me more for downgrading to standard wheels with safer tyres.