I think the game has already been overcomplicated. You've asked me for a figure when I said a couple of posts ago that I didn't have an exact figure in mind - and that if I did, I'm sure someone could better it.
My point is that Mini brake pads are tiny and in the instance I came into contact with them, they cost more than that of other cars, which use regularly sized pads. They cost more money for less material, which in my view makes it a premium.
Now before we all go getting giddy over the brake pads again (I feel we're swamped down here slightly), I understand that my case could be a fluke, that in fact Mini brake pads are only 10p for an axle set.
However, my main point is that owning a Mini could (and I did use the words 'not sure' in my original post) equate to higher running costs, due to the relationship with BMW. I really didn't think it was that controversial.