The V8 Ghost in the Machine: Inside AMG's 1,153-Horsepower Axial-Flux Bet

Mercedes-AMG released technical specifications for its 2027 AMG GT 4-Door Coupe on May 20, 2026. This vehicle represents the first application of the dedicated high-performance electric vehicle chassis, named the AMG Electric Architecture platform. The introduction of this custom platform comes during a broader industry shift, as several luxury manufacturers delay or cancel their dedicated electric vehicle lines. Mercedes-Benz itself cancelled its plans for a large electric vehicle platform, known as the MB.EA-Large, in May 2024 to save an estimated four billion to six billion Euros, according to a report by Handelsblatt, a German business newspaper. Despite those adjustments at the parent company, the performance division is proceeding with its own custom electric engineering.

The central engineering development of the new model is the integration of axial-flux electric motors. Mercedes-AMG is the first automaker to install these motors in a volume-production electric vehicle. A product filing from Mercedes-AMG states that the motors are co-developed with YASA, a British electric motor manufacturer that Mercedes-Benz acquired in 2021. Traditional electric vehicles use radial-flux motors, which generate a magnetic field perpendicular to the axle of rotation. In contrast, axial-flux motors direct the magnetic field parallel to the axle. According to a technical document published by YASA, this parallel design allows the motors to be sixty-seven percent lighter and sixty-seven percent smaller than traditional radial-flux units of similar output, while offering three times the power density.

The physical packaging of these motors changes the spatial layout of the drivetrain. The front motor is nine centimeters wide and weighs 176 pounds, according to a technical review published by Car and Driver, an American automotive magazine. The two rear motors are each eight centimeters wide and are housed together on the rear axle. In the flagship GT 63 variant, this three-motor configuration produces a peak output of 1,169 metric horsepower, which translates to 1,153 mechanical horsepower. The system also delivers 1,475 pound-feet of torque. A lower-powered version, the GT 55, produces 816 metric horsepower.

The battery system is designed to sustain these high power levels through repeated acceleration runs. Mercedes-AMG’s official product specifications detail an 800-volt lithium-ion battery with a usable capacity of 106 kilowatt-hours. The pack contains 2,660 cylindrical cells arranged in 18 modules. The cell chemistry uses nickel cobalt manganese aluminum to achieve an energy density of 298 watt-hours per kilogram. To prevent overheating during high-performance driving, the cells are directly surrounded by an electrically non-conductive cooling oil. This system is derived from Formula One thermal management technology.

How will this massive power output affect real-world driving range? Mercedes-AMG has not yet released the official United States Environmental Protection Agency range ratings. However, the manufacturer claims a projected range of approximately 315 miles on a full charge. This projected range is comparable to other high-performance electric models, but actual performance will vary based on driving style and temperature.

How does the charging speed compare to existing infrastructure? The vehicle supports a peak fast-charging rate of 600 kilowatts, but the fastest public charging stations currently available in the United States operate at 350 kilowatts. To utilize the full charging speed of this vehicle, buyers will have to wait for charging networks to deploy newer, higher-capacity hardware. According to a test report published by InsideEVs, an electric vehicle news publication, the 600-kilowatt rate allows the battery to charge from 10 percent to 80 percent in 11 minutes under ideal conditions.

What are the performance limits of this new powertrain? Mercedes-AMG claims the GT 63 can accelerate from zero to sixty miles per hour in 2.0 seconds. The sprint to 124 miles per hour takes 6.4 seconds. The top speed is electronically limited to 186 miles per hour when the vehicle is equipped with the optional AMG Driver’s Package. This performance places the vehicle in direct competition with other high-performance electric sedans, including the Porsche Taycan Turbo GT and the Lucid Air Sapphire.

The transition to electric power removes the mechanical noise of the traditional combustion engine, which has long been a defining characteristic of the brand. To address this loss, the vehicle features a synthesized audio system called AMG FORCE S+. The audio system mixes more than 1,600 digital audio files in real time based on speed, throttle position, and motor speed. According to a review by Autogefühl, a German automotive video publication, the audio files are recorded from the V8 engine of the previous gas-powered AMG GT R sports car. The system also introduces simulated gear shifts by temporarily interrupting power delivery and vibrating the seats to mimic the gear changes of a traditional automatic transmission.

Whether traditional buyers will accept this digital simulation of mechanical systems remains an open question. The company has not yet announced official retail pricing for the United States market. Car and Driver estimates the base GT 55 model will start around 140,000 dollars, while the flagship GT 63 model could exceed 210,000 dollars. Mercedes-AMG has stated that deliveries are scheduled to begin in late 2026 for the 2027 model year. The success of this high-stakes product will depend on whether luxury buyers value synthetic heritage as much as real mechanical engineering.

Correction note. An earlier version of this article misstated the total number of modules in the battery pack. The text has been corrected to show that the battery contains 18 modules, as detailed in the technical specification document published by Mercedes-AMG on May 20, 2026.