Ok so here is the deal. I have done all of my research for fitting a set of W211 wheels to my W210 4Matic Wagon. Thanks to all of the wonderful stickys I have a great understanding of the difference between W210 and W211 lug bolts. The wheels I am looking at a 16" from a 2004 E320. I decided to stick with the same diameter to make things easier, and I really don't car to go larger just different style. I will also be fitting snow tires to my stock wheels so I can easily interchange them when necessary. The only question I have now is about offset. According to a W210 wheel chart I found on this forum, my specific rim style and size has an offset of ET41. I will verify by pulling one of the wheels later. Does anyone know what the offset is on the particular wheels I am looking at from the 2004 E320? I have attached an image hopefully that helps. Also, when I order the M12 bolts with the M14 Ball, do I need the same exact length as mine or shorter?