Hello, I'm Chris. Thanks for visiting Just Answer.
The tire change you have selected is going to result in a sidewall height difference of 0.9 inches, 1.7 inch height difference, and when driving 60mph you will actually be driving 64.1.
Based on wanting to achieve a softer ride from the tire. I suggest going a shade wider as well with a aspect ratio of 60. Like a 235/60. 1.2 inch sidewall difference, 2.3 inch diameter difference, and the speedometer reading 65.2.
Thanks for your answer. I would definitely make the change you suggest if it will fit in all aspects the car I'm driving. Please confirm that this size of tire would be adequate for an audi a6 3.0 TDI Quattro 2007.
Yes this tire recommended will fit.