You don't see the truth like this very often!
Run-flat tyres fitted to BMWs are heavy, increase fuel consumption and have a negative effect on ride comfort - that's the opinion of Michelin, one of the companies that makes run-flat tyres for the German carmaker.
The candid assessment is made by Didier Miraton, the director of the Michelin Technology Centre.
He says carmakers such as BMW pushed for run-flat tyres.
"The OEMs (original equipment manufacturers or carmakers) are motivated by the spare wheel suppression (removal) for the reason of cost and space. We are, of course, following them on that path because it makes sense," Miraton says.
Full article here
Thanks to AutoBlog for the tip...