So you excavation the Mercedes-Benz S-Class, but you don’t truthful overmuch excavation the 21 MPG city, 30 MPG road EPA standing connected the base-model car with the 3.0-liter turbo inline-six. Fret not, due to the fact that Mercedes has conscionable announced a plug-in hybrid variant of its flagship full-size sedan that promises up to 60 miles of all-electric range…