New Mercedes-AMG C63e to tap F1 tech and GT73’s PHEV set-up

New Mercedes-AMG C63e to tap F1 tech and GT73’s PHEV set-up

Autocar

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C63e to pair direct-drive electric motor with 2.0 turbo four (imagined by Autocar above)

C-Class range-topper is in line to get a plug-in hybrid powertrain with over 500bhp

Mercedes-AMG's new P3 plug-in hybrid system is compatible with each of its existing combustion engines and will be paired with its latest four-cylinder powerplant for the upcoming C63e 4Matic+ EQ Power+, the hot, hybridised C-Class range-topper.

Arriving in UK showrooms in the first half of 2022, the four-wheel-drive Audi RS4 and BMW M3 rival adopts a longitudinally mounted version of the turbocharged 2.0-litre engine used by the A45 S 4Matic+, with a 48V integrated starter motor in the nine-speed AMG Speedshift MCT automatic gearbox. The electric motor will drive the rear axle and a battery pack under the boot floor will enable electric-only running.

This hybrid system has been developed to provide the C63e with a level of power and torque comparable with the outgoing model’s non-electrified, twinturbocharged 4.0-litre V8. The combustion element will benefit, particularly, from an electric turbocharger similar to that used for the turbocharged 1.6-litre petrol V6 engine that powers Mercedes-AMG’s Formula 1 car.

Exact figures will be revealed later this year but AMG insiders predict outputs of around 540bhp and 590lb ft – increases of nearly 40bhp and 80lb ft over the C63 S 4Matic.

The integrated starter motor used by the new C63e is also claimed to operate in similar fashion to the unit on Mercedes-AMG’s F1 engine. In various driving modes, it acts as a generator, providing energy recuperation as well as coasting properties on a trailing throttle.

Although the new AMG model is expected to weigh up to 250kg more than the outgoing C63 S 4Matic, the additional reserves should provide it with 0-62mph acceleration of around 3.5sec, a governed 180mph top speed and drastically improved WLTP fuel consumption figures.

As with the plug-in hybrid system planned for the new GT73e 4Matic+ EQ Power+ 4-Door Coupé, the battery being conceived for next year’s C63e is claimed to support 400V recharging for fast charging at up to 100kW.

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