Mercedes-AMG has unveiled the all-electric ‘GT 4-Door Coupé ‘with up to 860 kW of output and a peak charging capacity of more than 600 kW. Orders for the high-performance model will open in the coming days, initially with the GT 63 and GT 55 powertrain variants. And for sports car lovers who are missing the noise of a roaring V8, there’s a mode that delivers just that.
The all-electric GT 4-Door Coupé is the first model built on the Mercedes-AMG vehicle platform AMG.EA and is powered by three axial flux motors, which combine to deliver up to 860 kW of peak power.
Mercedes emphasizes that the model embodies “Affalterbach’s pioneering spirit with numerous world firsts.’ Referring to the name of the town near Stuttgart in southern Germany, where Mercedes-AMG GmbH is based.
Innovative
The four-door GT Coupé introduces several innovations. Mercedes-AMG is using axial-flux motors in a production model for the first time and combining them with an 800-volt battery derived from Formula 1 technology. Its directly cooled cylindrical cells are designed to deliver fast, repeatable, and sustained power output, a core element of the AMG brand promise.
Two powertrain versions will be available when orders open in a few days: the 63 and 55 versions. “The pricing for the models will be based on comparable predecessor vehicles,” Mercedes-AMG states.
These are currently priced at around €180,000 and €160,000, respectively. Notably, Mercedes has not mentioned the 43 version, the internal combustion entry-level model of the GT 4-Door Coupé, for the launch of the new electric generation. It remains unclear whether it will be introduced later.
Powerhouse
Technically, the new powerhouse centers on a drivetrain concept developed purely for performance. The vehicle is expected to accelerate from 0 to 100 kph in just 2.1 seconds, and from 0 to 200 kph in 6.4 seconds. Mercedes-AMG states a top speed of 300 kph (with the so-called ‘Driver’s Package’). Please note that these figures, and all subsequent figures, are still preliminary.
In AMGFORCE S+ mode, the vehicle delivers an authentic V8 sound and simulates traction interruption during gear shifts.
The three innovative electric motors of the GT 4-Door Coupé deliver a peak output of 860 kW (1,169 hp) in the 63 version. The 55 version offers 600 kW. According to Mercedes-AMG, this is not the limit: the architecture is technologically capable of supporting even higher outputs of over 1,000 kW, the manufacturer states. Notably, the axial flux motors rotate at over 13,000 rpm at top speed.
The motors are integrated into a High-Performance Electric Drive Unit (HP.EDU) at each axle. At the rear axle, this unit houses two axial-flux motors, each paired with a compact input planetary gearbox in a single housing. Importantly, the motors and gearboxes are oil-cooled. The required Pump Control Unit, complete with hydraulic pumps and suction filters, is also space-efficiently integrated into the HP.EDU. Additionally, two water-cooled silicon carbide inverters – one per motor – are included.
The front HP.EDU unit contains one motor, a spur gearbox with an integrated parking lock, a Pump Control Unit, and a liquid-cooled SiC inverter. “The axial-flux motor reaches more than 15,000 rpm at top speed,” AMG emphasizes.
The front electric drive acts as a ‘booster motor,’ engaging only when additional power or traction is required via the front axle. To improve efficiency under low load, the front axle electric motor can be rapidly decoupled, reducing unnecessary drag losses. The connection is re-established just as quickly during acceleration and recuperation.
Cylindrical cells, 800 volts
Regarding the completely new battery for the GT 4-Door Coupé, the AMG High Performance Electric Battery (AMG HP.EB) is the result of close collaboration between the engineers at Mercedes-AMG in Affalterbach and Mercedes-AMG High Performance Powertrains (HPP) in Brixworth, England.
The battery incorporates experience from Formula 1 and the development of the Mercedes-AMG ONE hypercar. It is designed to deliver the performance typical of AMG while also providing a range appropriate for its price class.
“The battery concept is designed to potentially enable WLTP ranges of well over 700 kilometers in the future,” AMG states. Currently, the manufacturer specifies a range of 600 to 700 kilometers.
Key innovations of the battery include newly developed battery cells, an innovative direct-cooling system for each cell, and a comparatively high voltage. The cell is cylindrical, tall, and narrow: it measures 10.5 centimeters in height and 2.6 centimeters in diameter.
Importantly, the cells’ cathodes feature a custom-developed NCMA (Nickel/Cobalt/Manganese/Aluminum) active material. Its counterpart is a silicon-containing anode. AMG specifies energy densities of over 298 Wh/kg and 732 Wh/l at the cell level.
The developers conclude: “Overall, the combination of the tall and slim format, aluminum housing, full-tab technology, and NCMA chemistry provides the foundation for maximum performance, particularly in terms of continuous power capability, in each individual battery cell.” Furthermore, “the high voltage of the 800-volt lithium-ion energy storage system also contributes to overall performance.”
Intelligent thermal management
In total, the Mercedes-AMG GT 4-Door Coupé features 2,660 cells, grouped into 18 laser-welded plastic modules. The battery housing itself is part of the vehicle structure. The plastic modules integrate an oil-based direct-cooling system for the cylindrical cells, with AMG highlighting a specialized coolant and responsive thermal management: “The intelligent thermal management controls the coolant temperature for each cell module exactly to the required value.” This approach is referred to as on-demand cooling.
All these innovations are reflected in the high-performance vehicle’s charging performance: the model can achieve a peak charging power of over 600 kW.
According to Mercedes-AMG, the GT Coupé can recharge enough energy for around 460 kilometers in just ten minutes. The charging time from 10% to 80% state of charge (SoC) is quoted as just 11 minutes.
Alternatively, the battery can be charged more gently at 400 volts during longer stops. Also important for global distribution: the Mercedes-AMG GT 4-Door Coupé supports five fast-charging standards: CCS2 in Europe, GB/T in China, CHAdeMO in Japan, CCS1 in South Korea, and NACS in the USA.
Concept-inspired
Mercedes-AMG had already tested the cornerstones of the new technologies for the all-electric performance four-door with the Concept AMG GT XX test vehicle in 2025. During this process, the concept car set several records, covering 40,075 kilometers in just eight days.
The optimal sustained speed during this endeavor was 300 kph, placing corresponding demands on the technology. In addition to the GT 4-Door Coupé, an all-electric SUV based on the AMG.EA platform is also set to follow, with testing already underway since late 2024.
Ola Källenius, CEO of Mercedes-Benz Group AG, speaks of an impressive debut: “I’ve driven the new AMG GT 4-Door Coupé myself many times, and it genuinely stands out. It pushes performance to new limits and delivers the emotion our fans expect, now in the electric era. From my time at AMG, I know how high the bar is set in Affalterbach. With this first model on the new AMG.EA architecture, we don’t just meet it, we move it.”
