Some other posts have pretty much hit up the response which could have several answers. The ET18s are pretty aggressive, my 255/35/19s are 26.1" tall and I don't rub but I am on the OEM ZCP wheels which have a ET31mm front not ET18. Unfortunately can't find any data on the Vredestein as far as the overall diameter. So combination of height and offsets..
It will probably be an on issue after awhile as the tire will wear and won't hit afterwards.
2013 M3 Coupe-MR/BLK ZCP, ACM test pipes, BPM Stg2 dev. tune and Megan catback, more to come
Previous rides: 2011 M3 Coupe-MR/Blk
2007 Porsche 997C2S Speed Yellow/Blk sport seats
2004 BMW M3 Imola/Blk