I just bought a 1998 C230, and I just put some snow tires on the stock wheels. I may get an extra set of wheels so I can just mount the wheels for summer and winter. I found out that VW Passat's and Audis from 1995 have a 5 x 112mm bolt pattern. i found some 7 x 15 Passat wheels with an offset of ET45 and wonder if they will fit same as the stock wheels. I wonder if the MB center cap willfit the Passat wheel also.