Mercedes-Benz S 500 Plug-in Hybrid Unveiled at Frankfurt [Live Photos]
The Stuttgart manufacturer wanted to move it up a notch though, and the latest series-production version of the S-Class is not only the most fuel efficient luxury sedan in its segment - beating even the Porsche Panamera S E-Hybrid - but it's also the most fuel efficient sedan on the planet.
The official NEDC fuel consumption of the Mercedes-Benz S 500 Plug-in Hybrid is an astonishing 3-liters per 100 km (78.4 mpg), and it releases only 69 g of CO2 emissions per km. In case you haven't figured it out yet, this makes it the first three-liter car in the luxury class.
Not only that, but the car can be driven under full electric power for around 30 km (18.6 miles), which means zero gasoline is used, while its battery can also be charged at any electrical outlet.
Paired with the electric engine there is of course an internal combustion one, a twin-turbocharged V6 with 333 hp. Together, the two engines can make the S 500 Plug-in Hybrid reach 100 km/h (62 mph) from a standing start in just 5.5 seconds, so the fuel sipping luxury car is no slouch either.
❐ Check out the Mercedes-Benz S 500 Plug-in Hybrid at Frankfurt Motor Show 2013 photo gallery