Moin! My 2.5DTI stands on 235/45 Pirellis with 17″ aluminium. I find that very chic.. but never had chosen it so much because it was too expensive. It was all about it. Now it is clear: the 15″ steel rims from the predecessor omega would fit. At least the tyre dealer says where they are stored. Now I planned as winter shoeing: 195/65 “house brand” on the old 15″ steel rims with new Opel rim covers. Although the optics was never really important to me (I am already married and also have a healthy self-confidence): What do you think? Does this look reasonable? How do the smaller rims and narrower tires in the big wheelhouses look like? I mostly drive around Hamburg in the typical northern German muddy weather with little snow. The Alps will probably never see my car. Are narrow tires advantageous here? Does something (technically) speak for throwing away the steel rims and buying aluminums for the winter? Just asked at the FOH: A set of original de ckel costs EUR 60,00. The seasonal tyre change on the existing aluminium wheels is not possible for me. Any hint is welcome. After all, this should be the optimal solution for the next 4 years. mHF