In a surprising move, Mercedes-Benz has reportedly decided to offer the updated C-Class with a diesel plug-in hybrid powertrain.

According to Autocar, this version of the revamped C-Class will be named the C400d EQ Power and feature a zero-emission range of up to 31 miles (50km). Moreover, it will be joined by a new petrol-electric version, called the C400 EQ Power.

Both will use an updated version of the electric motor used on the current petrol-electric C350e PHEV that’s delivering an extra 41hp to the wheels, in addition to a tweaked charging system, which will provide quicker charging times, according to undisclosed sources that are familiar with the issue.

The rest of the 2019 Mercedes-Benz C-Class models will benefit from new 2.0-liter four-cylinder petrol and diesel units, with extra power and lower CO2 emissions.

Diesels will churn out 148hp, 192hp, and 241hp in the C200d, C220d, and C300d, respectively. One of the petrol options will get 188hp in the C200 EQ Boost that’s named that way to highlight the implementation of a mild hybrid setup with a 48V electric architecture that adds an extra 17hp of electric boost for short periods of time, and a belt-driven alternator.

The upcoming C300, on the other hand, doesn’t have a hybrid function, but comes with 255hp, up 13hp compared to the current car, thanks to increased turbo boost pressure.

At the higher end of the range, the C43 models are believed to retain the 3.0-liter V6 engine, but with a minor power boost, whereas the top-of-the-tine C63 will get an updated version of the 4.0-liter V8 with new twin-scroll turbochargers.

Depending on the selected model, the facelifted C-Class will come with either a 6-speed manual or a new 9-speed automatic gearbox that replaces the 7-speed auto offered on the current models.

Styling changes to the 2019 Mercedes-Benz C-Class are expected to be discreet, with modified lighting units, bumpers, and a new diamond pattern grille insert on AMGs. The range-topping versions will get Adaptive Highbeam Assist Plus headlights as seen on the E-Class and S-Class.

The facelifted Mercedes-Benz C-Class is expected to mark its first public debut in March, at the 2018 Geneva Motor Show.

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