I have 2 Continental Extreme Contact DWS Plus 06 Tires 315/35/R20 Tires for sale. These were used as rear tires off of a 2013 BMW X5 for about 4 yrs. I have a set of winters so these were used for spring through fall months with about 28,000 kms on them. There's about 6-7/32 of tread left with pretty even tread wear. The front tires were pretty worn on the outside shoulder so decided to replace all 4 tires. The rears are still in pretty good shape.