Originally Posted by Gesler
I used to have the M3 steering wheel on my 07 335i. The one in the M3 (2011) is smaller, maybe slightly thinner and the leather is different too ('matt' as against 'glossy' on the older one). I had just assumed that the M3 wheel in my 335i was from the e46 M3 or it was not OEM.
It gets glossy as the dirt and oils accumulate.