Yep, the summer - tire performance package is worth the money. (automobilemag.com)
There would be some compromise in tire performance by using narrower wheels than the middle, or wide end of the spec for the tire size. (autoline.tv)
«The race tracks, rally courses and desert courses are all extensions of our testing labs and our engineers help us to extract every bit of knowledge and understanding of tire performance in an exceptionally wide range of vehicles and conditions.» (michelinmedia.com)