Ok,
Perhaps I left myself open for a little misunderstanding. I was comparing the 17" optional mini wheels to the standard fit 16"s (either of them). I've no doubt that in demanding applications a good pilot may be able to pick a difference between the standard fitment wheels, and a set of really good aftermarket wheels and tyres.
However, my contention is that the difference between the standard mini 16" and 17" on the road probably wouldn't be that great. Especially in Aus where we are ruled by speed Nazi's.
In the thread below some people are saying that the difference between wheels and tyres could leave one mini feeling between 200 and 400 kg heavier than another on standard wheels. That means that a set of light wheels and tyres could be expected to give a similar difference in acceleration that there is between a Cooper and a S. Hmmm, sounds a lot to me.
http://www.mini2.com/forum/showthrea...threadid=10604
Now I have not been in a position to drive the two back to back as mini's are still a little scarce here. However I do have some experience with light cars with light wheels.
I have driven several Lotus, and currently own an Elan (original). Recently I had cause to drive a friends Elan that had a substantially heavier and grippier wheel/tyre combination. I must admit that at street speeds the main difference was more grip and better turn in.
As for strength, I guess it is conceiveable that the standard fit 17" mini wheels aren't any stronger than the 16"s. I know I've seen friends with very expensive forged race wheels bend them on minor pot holes.
All I was saying was we need a little perspective here.