Facelifted Mercedes-AMG GT 4-Door Coupe spied with 804bhp plug-in power

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Luke Wilkinson

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Mercedes will soon launch an 800bhp-plus plug-in hybrid powertrain for the AMG GT 4-Door Coupe, set to arrive later this year as part of a mid-life facelift for the brand’s Porsche Panamera rival.

These latest spy shots all but confirm the new plug-in hybrid powertrain will be fitted to the facelifted Mercedes-AMG GT 4-Door Coupe.


Most obviously, there’s an extra filler flap on this mule’s rear bumper, which hides the system’s charging socket. There’s also a new “E Performance” badge on the car’s front wings, which we already know is the branding reserved for AMG’s upcoming electrified models.

Mercedes-AMG’s new ‘73 e’ powertrain will be based on the same 639bhp twin-turbocharged 4.0-litre V8 engine as the brand’s current 63 S flagship, albeit supported by a 6.1kWh battery pack and an electric motor mounted on the rear axle.

The electric part of the powertrain adds 94bhp to the GT 4-Door’s total output. However, the system also can temporarily deliver up 201bhp with ten second blasts of overboost, which is managed by an additional two-speed gearbox on the rear axle. Combined maximum output can reach as high as 804bhp.

The plug-in 73 e powertrain shares the same nine-speed automatic gearbox and four-wheel drive system as the petrol-only 63 S model. Mercedes says the GT’s powertrain management system can re-route the electrical boost to the front wheels, if the added power overcomes the limits of grip at the rear axle.

Performance specifications for the new plug-in hybrid system are yet to be confirmed, but Mercedes has also hinted that the powertrain will enable more than 60 miles on electric power alone.

New Mercedes-AMG GT 4-door

New Mercedes-AMG GT 4-door
New Mercedes-AMG GT 4-door - front

New Mercedes-AMG GT 4-door - front
Mercedes-AMG GT 4 Door PHEV - side

Mercedes-AMG GT 4 Door PHEV - side
Mercedes-AMG GT 4 Door PHEV - rear

Mercedes-AMG GT 4 Door PHEV - rear
New Mercedes-AMG GT 4-door

New Mercedes-AMG GT 4-door
New Mercedes-AMG GT 4-door - rear

New Mercedes-AMG GT 4-door - rear
New Mercedes-AMG GT 4-door

New Mercedes-AMG GT 4-door
New Mercedes-AMG GT 4-door

New Mercedes-AMG GT 4-door
New Mercedes-AMG GT 4-door

New Mercedes-AMG GT 4-door
New Mercedes-AMG GT 4-door

New Mercedes-AMG GT 4-door
New Mercedes-AMG GT 4-door

New Mercedes-AMG GT 4-door
Mercedes-AMG GT 4 Door PHEV - front

Mercedes-AMG GT 4 Door PHEV - front
New Mercedes-AMG GT 4-door

New Mercedes-AMG GT 4-door
New Mercedes-AMG GT 4-door

New Mercedes-AMG GT 4-door
New Mercedes-AMG GT 4-door - side

New Mercedes-AMG GT 4-door - side
New Mercedes-AMG GT 4-door

New Mercedes-AMG GT 4-door

Despite the extensive mechanical upgrades, Mercedes hasn’t fiddled with the AMG GT 4-Door Coupe’s styling too much, based on these spies. The only noticeable change is the new front bumper, which features more intricate slatted intakes and a larger lower grille. Buyers will likely also be able to choose from a few extra paint finishes and a couple of new alloy wheel designs.

As the Mercedes-AMG GT 4-Door Coupe is closely related to the recently revised AMG E 63 S, we expect it’ll receive the same sports steering wheel and a similar range of trim and upholstery revisions. The coupe should also adopt the latest version of Mercedes’s 12.3-inch dual-screen infotainment system.

Like the current car, Mercedes will continue to offer the AMG GT 4-Door Coupe with either a 429bhp 3.0-litre straight-six mild-hybrid or 639bhp twin-turbocharged 4.0-litre V8 engine alongside the new plug-in hybrid powertrain.

Now read all the latest news on the upcoming Mercedes-AMG C 63 Estate. Let us know your thoughts in the comments below…

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