Mercedes reveals S500 plug-in hybrid, rated at three liters per 100 km - Autoblog
3L/100km = 94 MPG
Pretty crazily good for such a big car to be honest, especially that you can charge at home / car parks.
Doesn't sound cheap though! Around £85-90k I guess???
Mercedes Models Rated Most Reliable according to the ADAC Germany's automobile association. see http://www.emercedesbenz.com/May06/05MercedesModelsNamedMostReliable.html
Donner und Blitzen:eek: :eek: