Hello, I ordered a Kia Ceed GT-Line 160hp at Wochenede. This one has 17 ” rims and 225/45R17 tyres. I had read something in the forum and read the reference of the permissible tyre size in the COC. Since the delivery of the Ceed will still last and I want to use the time “sensibly”, I already look for winter tire sets. The vision exists with the smooth engine power and, I suppose, the same brake disc size. And he drives with 16”. Would like as a Wint This would have to be possible, wouldn’t it? If it wasn’t in the COC, what do I have to do to use it like this and could there be problems? Would a request directly from Kia facilitate the approval? Thx