Mercedes is launching two new fuel-efficient versions of the E Class, the E 300 BlueTEC HYBRID and the E 400 HYBRID.
The E 300 BlueTEC HYBRID is available in both saloon and estate body styles and comes with a 4-cylinder diesel engine rated at 204 HP (150 kW) and 500 Nm of torque plus an electric motor that provides an additional 20 kW and 250 Nm.
This engine is mated with fuel efficiency maximizing technologies such as start/stop,
regenerative braking, boost effect, purely electric motoring and
"sailing" function, and as a result, its consumption figures are 4.2-litres per 100 Km, with 109 grams of CO2 being released into the atmosphere per Km.
The Mercedes E 400 HYBRID comes with the same technologies mentioned above, but in this case the powertrain consists of a V6-petrol engine producing 306 horses (225 kW) and 370 Nm of torque linked to an electric motor as the one found in the E 300 BlueTEC HYBRID which provides an extra 20 Kw and 250 Nm of torque.
The E 400 HYBRID consumption figures based on the American CAFE standard are 24 mpg city, 31 mpg highway and 27 mpg in a combined cycle.

Source: Mercedes