I recently upgraded from an older 2005 C5 to a newer 2013 C8.5 Allroad! I love all the new creature features! Though I must honestly say that the older Allroad interior was much nicer, loved the door pockets and the carpet seemed to be a better quality. And factory rubber mats on the newer Allroad are crap compared to the older C5 rubber mats... BUT on to some things which blow the older C5 away... Computer tweaks!!!

So I have seen several places online (like: http://www.audienthusiasts.com) which have some info but was wondering if there is any others or even a "manual" which goes over all the info in more detail?