Greetings. I Recently purchased a 2012 Audi A7 and it came with the 20 inch rims which are gorgeous. The original size is 265/35/20 and I am thinking about going to a 275/35/20. The size difference is minimal HOWEVER, there are way more choices and the prices seem to drop by almost $400 for a set. Right now I have Continental DWS 06 and I am thinking abiut sticking to the same but just slightly before as stated above. I looked at a couple of conversion charts and I think they would fit. Our local discount tire and Costco store told me that nothing should stick out or rub as you turn, etc. has anyone done something similar. Keep in mind that the A7 has the sport and prestige packge and the suspension is lowered just a little. Thanks in advance for any suggestions.

Assuming that the rims are wide enough to safely handle a 275 tire you will be fine. I increased my tire width by 10 on my old A6 without any problems.