Mercedes-AMG’s most powerful car ever set to be hybrid-powered



AMG GT 73 4-Door Coupe expected to have 800+hp when it debuts in 2020.

Affalterbach, Germany

Never one to shy away from excess, Mercedes-AMG will launch a new range-topping version of the GT 4-Door Coupe in 2020, and it’s going to be a hybrid.

This was teased in an end-of-year video the company released to thank all of its employees for an eventful 2019, which included the debut of the world’s most powerful four-cylinder engine, and the launch of the current flagship, the GT 63 S 4-Door Coupe, amongst its highlights. 

But amidst the hip-hop music and gratuitous slow-mo shots of various AMG models in action (including the upcoming AMG One hypercar), came a fleeting glimpse of what’s coming next year: a GT 4-Door prototype with the same square-tipped exhausts as the 63 S accelerating away from the camera, but with the silent whirr of an electric motor instead of a thundering V8 roar.

That’s the most telltale confirmation so far of the new flagship AMG, which debuted in concept form (below) in 2017, and combined the familiar 4.0-litre twin-turbo V8 with an electric motor to produce over 800hp – and there’s no indication that the production car will be any tamer than that.

Likely to wear “73” branding (as opposed to the current-biggest “63” models in the Mercedes-AMG lineup), this new car will be not only Mercedes-AMG’s most powerful car ever (eclipsing the 670hp SL 65 AMG Black Series from 2008), but also the most powerful production four-door ever made (its closest rival would be the 680hp Porsche Panamera Turbo S E-Hybrid, although the 750hp Taycan Turbo S features in roughly the same ballpark).

Performance specs for the final product are obviously not available yet, but it’d unsurprisingly also become the quickest four-door car ever; the AMG GT Concept claimed a 0-100km/h time of under 3.0 seconds, and a pure-electric range of up to 50km. Reports have mentioned that the GT 73’s hybrid system is being developed with lessons derived from Mercedes’ Formula One Team.

While the arrival of the GT 73 has been confirmed, its exact due date has not. However, we’d put money on it showing up at the car industry’s most important show, the Geneva Motor Show in March.

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Jon Lim
CarBuyer's latest addition is its fourth historical Jonathan. Old-fashioned in all but body, he thinks car design peaked in the '90s. He also strongly believes any car can be a race car if you have a sufficient lack of self-preservation, which explains why he nearly flipped a Chinese van while racing it.