Based on the Audi order guide obtained from a local dealer, I see that the 2013 model year has an "Engine Start/Stop efficiency function" and "Start/Stop system with energy recovery." Question: Do these functions automatically stop and start the engine when needed, like at a stop-light? I've seen negative reviews of this feature as implemented in the BMW 3-siries.

Also for 2013:

- the "(data req'd)" note attached to the Google Earth nav item does not appear ... what does that mean?

- the smart key moved from Prestige to Premium Plus

- the 18" sport packages are not available

- LED headlights are not included in the innovation package

- the Bose sound system is a stand alone option (also included in Prestige package).

- a new option for power rear window sunshade and manual rear door shades

- a new option for power trunk open/close

Everything else looks the same. Note, prices were omitted from the 2013 sheet.