dssdmd

The J D Powers 2013 overall dependability study, which is based on the 2010 model year, was won by the 2010 Audi A6 in the Midsize Premium Car category, ahead of Volvo & Lexus, and others not mentioned. http://autos.jdpower.com/ratings/dependability.htm
Also Initial Quality Study
http://autos.jdpower.com/research/Au...an/ratings.htm
The details are even more interesting in the initial quality study.
Finally, a summary of the 2013 study results is quite interesting in what it shows about trends http://autos.jdpower.com/ratings/2013-VDS-Study.htm and states that new features in 2010 were more reliable than features that carry over from previous years, indicating that new features are not less reliable than those carried over, as is commonly assumed.

dssdmd

An additional study ranks the 2012 Audi A6 first in its class(Midsize Luxury) in Automotive Performance, Execution, and Layout after 90 days of ownership.
http://autos.jdpower.com/ratings/per...ss-release.htm in a study released in July 2012.