Looking to buy winter wheels for my GLA 45 AMG, and I have decided to go for 235/50/18 tyres as they are identical diameter with the 20" wheels I have now. My question is, can the 18" wheels from CLA 45 or A45 AMG or any aftermarket that fit those cars , fit in my car without clearance problems? What wheel specs have you opted for if somebody has taken this step?