Depends on the brand of the runflats. I know one complaint about it is the feel of it. The expensive ones are not bad though. I got the Pirellis snow and ice and they are premium tires and they feel the same as the Non RFT ones, feel better than Nittos, ones I had before this. Would I buy RFT after my current set? Absolutely.

eurogreek1, feel free to test drive my X5 if you want to feel the scorpions.

That is probably true for the X5 with a 50 series tire.

My 335i had 265/30/19s on it and at the lower profiles the runflats were rim cracking stiff (literally). That plus the costs made me move away from them, I will put up with having to lug a spare tire around.

-Rich

Also remember that BMW offers the tire mobility kits for those that are eschewing runflats and going to regular tires. If you feel that stowing a spare tire kit takes up too much trunk or cargo space...there's the option of the tire mobility kit that comes with a "built in" and replaceable (once it is used) canister of sealant (the new style kit) and a 12v air compressor. The compressor has a selection for air (only) or repair (uses the built in sealant canister). That along with a road side service (like AAA) can be a work around if you want to dump the run flats. :)

I just picked up a tire mobility kit off Amazon.com...it was brand new and the seller was a BMW/Mini of San Francisco.