It's not often that an automaker unwillingly and inadvertently reveals an upcoming vehicle to the media, but that's precisely the case here.

2014 Mercedes-Benz S-Class Behind Blow-Up Benz...Why the Blow-Up Benz? To Deceive Spy Photographers. It Didn't Work, so MB Released This Photo of Its Own
A few days ago, Mercedes-Benz hosted members of the media in Germany. The automaker was showing the media how the completely redesigned 2014 S-Class' user interface system functioned. In a PowerPoint mix up, Mercedes revealed a slide of the upcoming S-Class Plug-In Hybrid.
This plug-in vehicle had never been confirmed for production by Mercedes-Benz officials, nor had any images of it leaked out in the past. That all change at the media presentation when, as Car Advice says:
"Screenshots of the limo’s TFT instrument display revealed versions showing ‘E drive’ accompanied by a battery usage gauge and graphic drivetrain schematic featuring an electric motor sitting behind a conventional engine and a battery pack positioned in the boot."
Of course, Mercedes-Benz tried to quickly clean up its error by saying powertrain choices for the entire 2014 S-Class lineup won't be revealed until May. Mercedes-Benz offered no further comment on the matter.
But a plug-in hybrid S-Class has been revealed before, just not in production trim or in the 2014 Model Year body style.
Back at the 2009 Frankfurt Motor Shopw, M-B wheeled out is Vision S500 Plug-In Hybrid Concept. That vehicle featured a 3.5-liter V6 engine, a 45-kW electric motor and a lithium-ion battery pack. M-B claimed the Vision S500 could sprint from 0 to 62 mph in 5.5 seconds and consume fuel at a rate of 3.2 liters per 100 km (74 MPG US).
The Vision S500 is not the vehicle that was inadvertently revealed by M-B during the media presentation. It was a 2014 production-ready plug-in hybrid S-Class, so specs most likely changed significantly, but reports suggest that the 2014 plug-in S-Class will be capable of operated in electric-only mode for 20-ish miles and that its fuel economy rating will beat a Toyota Prius.
Look for us to present more info on the S-Class Plug-In Hybrid in May as Mercedes-Benz lets the details fly.
via Car Advice
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