Swapped my summer wheels for my brand new run flat winter contact Continentals Contiwtntercontact SSR TS830P and love it! With 255/50/19 at belo 100km/hr they seem quieter and softer than my 20 inch non runflat summers Continelal sport! May be summers width (and lower profile) makes all the difference. Summers are a typical staggered 275/315 on 20s.

__________________
2011 BMW X5M (was "loving the torque!" but used to it now - want more)
1997 Suzuki GSX-R750