When I purchased my 2015 A7 TDI, I was promised that it would be a luxury vehicle I would be proud to drive.  I was also promised the TDI engine combined with ultra-low-sulfer diesel would be certified for use in all 50 states. Unfortunately, both of these promises turned out to be untrue.  My A7 brakes squeaked so badly after only 10K miles, I was embarrassed to drive it. Also, the US government is currently in the process of suing Audi/VW for billions of dollars due to emission cheating with TDI models. 

UPDATE:   All issues have been resolved, Audi Customer Experience has improved greatly, and I once again would recommend Audi to others.

Truth in Engineering?

My Experience with Audi