Hello dear friends, since I am happy about beautiful cars, but I am not an expert, I would like to share a question with you. I recently bought a Mercedes GLC. At the moment it has a summer tire 235 / 60 / R 18. Now I think instead of winter tires to pull all-weather tires on it. Have I looked at the Goodyear Vector 4Seasons Gen-2 SUV M+S all-weather tires. (Has anyone already experience with the tires that they can possibly share?) However, I also waved whether I had 19 inches ode According to the registration certificate, I could take 235/55/R19. But if I type this into the tire calculator (see file) the diameter is only minimally larger. Therefore, I wonder, of course, if I should invest the money in the 19 inch rims or prefer to put only 18 inch tires on the existing rims.What would you do? Thank you very much in advance for your decision support.