First time Benz owner. We bought it for my wife. She doesn't have to drive the big Dodge 2500 Diesel. It is a well cared for vehicle. There are many other choices out there, but very few with the cachet of a MB. I am running into our first challenge: steel rims for the winter. We have stock 17's with 275/55R17. Too wide for the snow. I am looking for steel 16s with the right offset. The local dealer look in a book, look blank and move back to a summer rim. I am looking at Audi 16s from an A4. The rims are 16x7 with a 37 mm offset. 1010tires calculator puts the outside track very close and increases the space inside significantly. We are looking for reliable input with experience.