The third hybrid model of the new S-Class, the S 500 PLUG-IN HYBRID, is the latest offering in Mercedes-Benz’s drive for greener motoring. With claimed CO2 emissions of 69g/km and returning 2.5 litres/100km, the S-Class sets a new benchmark for luxury saloons that just a few years ago was thought virtually impossible.
In Germany the S 500 PLUG-IN HYBRID is referred to as a genuine 3.0-litre car as it can cover 100 kilometres with just three litres of fuel. Merc say the 80-kW electric drive, with externally rechargeable battery, makes emission-free driving for about 29km possible. It is combined with the new 3.0-litre V6 turbocharged engine.
With the new S 500 PLUG-IN HYBRID, Mercedes-Benz expands the hybrid line-up in this model series to three models: the S 400 HYBRID, S 300 BlueTEC HYBRID and S 500 PLUG-IN HYBRID.
All second-generation hybrid drive systems share the seamless integration into the powertrain meaning the combustion engine can be completely decoupled from the electric motor. Further features are the second-generation recuperative braking system and the anticipatory Intelligent HYBRID energy management system.
While the batteries of the S 400 HYBRID and S 300 BlueTEC HYBRID as autonomous hybrids are charged during braking or coasting or by the combustion engine, the new high-voltage lithium-ion battery of the S 500 PLUG-IN HYBRID has ten times the energy content and offers the option of being recharged from an external source with a charging socket located on the right side of the rear bumper.
Four hybrid operating modes can be selected at the push of a button:
- E-MODE: electric power only
- E-SAVE: fully charged battery is reserved to be able to drive on electric power alone later
- CHARGE: battery is charged while driving
With power output of 245kW from the combustion engine plus 80-kW electric motor and torque of 480Nm from the combustion engine plus 340Nm from the electric motor, the S 500 PLUG-IN HYBRID is said to complete the 0-100km/h sprint in 5.5 seconds with a top speed of 250km/h
Anticipatory energy management system
The second-generation S-Class hybrids feature an anticipatory energy management system. The operating strategy of the hybrid drive system not only accounts for the current driving condition and driver input, but also adjusts to the likely route (inclines, downhill stretches, bends or speed limits) for the next five miles.
Mercedes-Benz will present the S 500 PLUG-IN HYBRID at the Frankfurt Motor Show (IAA) with the market launch scheduled for next year.