2009 E 320 Bluetec Electric Warm up

[nyko46]

Driving during the winter months it takes couple of miles until the engine get warm to get hot air inside the cabin of the Diesel cars.
Even though comparing with the older Mercedes that I had, I noticed that my 2009 MB Bluetec get's warm quicker than my old 1982 300SD. Those old MB have an electric 120 volt plug to connect to home power supply. Unless I am wrong I never saw this connector on the E320. Has someone any idea if this feature is available for E320 Diesel? My car is kept on garage and if this feature is available it will be great to have the heating ready to warm the cabin right the way.
Thanks