Mercedes-Benz S560e doubles electric range, arriving 'mid-2019'

Drivers can expect to reach 25 miles before the V6 engine begins burning gasoline.

Mercedes-Benz has detailed the S560e plug-in hybrid, serving as a successor to the S550e with more power and longer electric range.

The S-Class Sedan's revised hybrid system employs lithium nickel manganese cobalt (Li-NMC) batteries, increasing rated capacity to 13.5-kWh. The new battery pack, built in-house at a Daimler subsidiary, fits into a smaller footprint than the previous lithium iron phosphate (LiFePo) module despite bringing a 50-percent increase in energy storage.

The company expects the S560e to reach 25 miles on battery power alone, double the S550e's 12-mile all-electric EPA range estimate.

The 9G-Tronic hybrid transmission benefits from improved electronics, allowing a higher output of 121 horsepower and 325 pound-feet of torque from the electric motor alone. The 3.0-liter turbocharged V6 provides another 362 horsepower and 369 pound-feet of torque, though it is unclear if the system is programmed to simultaneously apply full torque from both the internal combustion engine and electric motor.

Drivers seeking the optimum balance between performance and efficiency can pay attention to the haptic accelerator pedal. A double pulse in the pedal warns drivers when they are approaching the point where the internal combustion engine kicks in.

The S560e is not expected to land in US showrooms until 'mid-2019.'

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