Hello, I slowly despair …. Have an Audi A3 limousine and am looking for winter shoes so well. I first had the MAM A1 in 18 inch 8J ET 42 selected there I had a Dunlop winter sports 5 (with rim protection) 225/40 R18 mounted there was the rim about 3-4 mm above so that the rim protection had no function at all. I then looked around after a rim the narrower is so the choice on the Oxigin 18 concave in 18 inch 7.5J ET 45 was now there also the Dunlop is mounted and also there the rim is above ….! The rim is about 12.7mm narrower why the tire is still not above the rim outside …… Hmmmm perplexity