With governments and even consumers requesting automakers to explore green technology, luxury cars offer the most viable place to create electrified powertrains. Luxury vehicles are typically sold at a high profit margin allowing the incorporation of new, exotic technologies to be performed without the limitations or sticker shock associated with electric cars trying to appeal to a growing market. That has been the key of success for Tesla Motors and the BMW i line is launching with the anticipation they can find a similar premium market for electrified cars. Taking their first step into the plug-in hybrid vehicle marketplace, Mercedes-Benz is all charged up with the newest variant of their flagship S-Class sedan . Set to be one of the largest plug-in hybrid cars on the market, the Mercedes-Benz S550 Plug-in Hybrid will also be perhaps the most lavish vehicle to be chauffeured through zero emissions motoring. For up to 20 miles, the S550 Plug-in Hybrid will exclusively run ...