So far Michelin PS2 RFT only offer in 18" on Tirerack, but you could go with Conti as well.
14 F30 335i M Sport Melbourne Red
13 E93 M3 Melbourne Red
12 E93 Space Gray ( Retired BMW buy back )
2006 E90 ( sold ) 09 E82 Space Gray ( sold )
My next vehicle would be a Zamboni