2017 Brand Reliability : Audi #4 overall, Q3 is the most reliable Audi Model

You mean A7 as the least reliable vehicle within the brand? The current generation Q7 has scored well in CR tests.

The first model of the current generation Q7 impressed the CR testers last year. They said, "...Audi's luxury three-row SUV is an impressive vehicle, and among the best we've ever tested." Since the all new Q7 was new last year CR put it in honorable mention instead. It's highly unlikely one year later, and without major changes, the Q7 becomes the least reliable vehicle within the Audi brand. If I recall correctly CR bashed the Audi A3 last year.