Mercedes-AMG goes electric with the 2027 GT 4-Door Coupe and three axial flux motors

Mercedes-AMG is taking its four-door sports car nameplate fully electric, with the new 2027 Mercedes-AMG GT 4-Door Coupe arriving in two trims that promise output figures and charging speeds the segment has not seen before. The Mercedes-AMG GT 55 4-Door Coupe will arrive at U.S. dealerships in late 2026, followed by the more potent Mercedes-AMG GT 63 4-Door Coupe in early 2027. Both versions ride on AMG.EA, the brand’s new high-performance electric architecture, and both rely on a drivetrain configuration that Mercedes-AMG says has never before been used in a series-production electric vehicle. For buyers, the headline numbers translate to a four-door sedan that accelerates like an exotic, drives long distances without warning the driver about heat-soak, and recovers its range at a pace that closes much of the perception gap between fast charging and refueling. The GT 63 4-Door Coupe makes a peak 1,153 horsepower and 1,475 pound-feet of torque, reaches 60 mph in 2.0 seconds, and continues to 124 mph in 6.4 seconds. The GT 55 4-Door Coupe makes 805 hp and 1,328 lb-ft of torque, with 60 mph arriving in 2.4 seconds. Both versions reach an electronically limited 186 mph when equipped with the optional AMG Performance Package, and both share a 106-kWh usable battery, an 800-volt electrical architecture, and a 600-kW peak DC charging capacity. Mercedes-AMG previewed the technology last year with the Concept AMG GT XX, which set 25 long-distance records during a continuous run at the Nardò proving ground in Italy. That same drivetrain philosophy, with axial-flux motors fed by a directly cooled cylindrical-cell battery, is now entering production for the first time in the GT 4-Door Coupe. Destination Charged has previously covered how the Concept AMG GT XX set its 25 endurance records at Nardò, and many of the technical lessons from that test, including the high-rate continuous discharge profile and the rapid sequential charging behavior, carry over to the GT 4-Door Coupe. Three axial flux motors and a new electric architecture Photo credit: Mercedes-Benz The most consequential change versus the outgoing combustion GT 4-Door Coupe is the powertrain. The new car uses three axial-flux motors: two at the rear axle and one at the front, all developed by British motor specialist YASA, which has been a wholly owned subsidiary of Mercedes-Benz since 2021. In an axial flux motor, the magnetic flux runs parallel to the motor’s axis of rotation rather than perpendicular to it. The rotors and stator are stacked like discs in what Mercedes-AMG calls an H-configuration, which yields a much shorter, lighter, and more torque-dense motor for a given power output. The two rear motors are housed inside a single high-performance electric drive unit, paired with a single-stage planetary gearbox, oil cooling, and water-cooled silicon carbide inverters. The front motor uses its own electric drive unit with a spur gear transmission, an integrated parking lock, and a disconnect unit that decouples the front motor in milliseconds during steady cruising to save energy. The rear motors spin to more than 13,000 rpm at top speed, and the front motor runs to more than 15,000 rpm. Total system peak output reaches 1,153 hp in the GT 63 (measured during AMG Launch Control at 80 percent state of charge) and 805 hp in the GT 55, with continuous output figures of 711 hp and 503 hp, respectively. Mercedes-AMG notes that the AMG.EA platform is engineered to support drivetrains exceeding 1,300 hp in the future. A 600-kW production EV Photo credit: Mercedes-Benz The car’s high-voltage battery is a Mercedes-AMG in-house development that draws on Formula 1 expertise from the brand’s High Performance Powertrains operation in Brixworth, England. It uses 2,660 cylindrical cells, each 4.1 inches tall and 1 inch in diameter, packaged into 18 laser-welded plastic modules. Each cell uses a laser-welded aluminum housing, a full-tab pole connection to reduce internal resistance, and NCMA chemistry with a silicon-containing anode. Mercedes-AMG reports a cell-level energy density of more than 298 watt-hours per kilogram, or 732 watt-hours per liter. The full pack delivers 106 kWh of usable capacity at 800 volts, with WLTP range of 370 to 433 miles (596 to 696 kilometers) in the GT 63 and 371 to 435 miles (597 to 700 kilometers) in the GT 55. Mercedes-AMG says the cell and pack design could potentially support WLTP figures of more than 435 miles (700 kilometers) in future variants. Cells are surrounded directly by an electrically non-conductive oil that flows through the modules and removes heat at the cell surface, a thermal management approach that Mercedes-AMG says enables a cooling capacity of at least 20 kW, compared with the 5 to 8 kW typical of conventional EV battery systems. Charging performance is where the GT 4-Door Coupe makes its boldest claim. At an 800-volt fast charger capable of more than 800 amps, the car will draw a peak of more than 600 kW, enabling approximately 286 miles (460 kilometers) of WLTP range to be added in 10 minutes and a 10 to 80 percent state-of-charge top-up in as little as 11 minutes. The system can downshift to 400 volts on legacy stations, and Mercedes-AMG has built-in support for five regional DC fast-charging standards, including NACS in the United States. For context, the Volvo ES90, which Volvo introduced earlier this year on its own 800-volt architecture, peaks at roughly 350 kW. The AMG’s headline 600-kW figure is conditional on charging hardware that is only beginning to appear at scale, including Alpitronic’s newest cabinets, though Mercedes-AMG notes that the car can also draw close to its full charge rate across a broad portion of the curve on lesser stations. A V8 that does not exist For an electric performance car priced and positioned for AMG faithful, sound is not a footnote. The new AMG Force Sport+ drive program reproduces the experience of an AMG V8 inside and outside the car, including simulated gear changes with brief torque interruptions, an adapted instrument cluster display, and a sound profile derived from the AMG GT R (C 190). Mercedes-AMG says the patent-pending mixing system uses more than 1,600 individual sound samples, granulated and recombined in real time to track throttle position, vehicle speed, and drive mode. The intent is to give buyers who are moving from a combustion AMG something familiar in the most emotionally charged moments behind the wheel, including launch, hard upshifts, and lift-off burble. Chassis, steering, and active aerodynamics The chassis uses multi-link suspension at both axles, with forged-aluminum components at the front to reduce unsprung mass. The GT 55 4-Door Coupe receives AMG Ride Control+ air suspension as standard, and the GT 63 4-Door Coupe gets the more advanced AMG Active Ride Control system, which uses hydraulically interconnected dampers in place of mechanical anti-roll bars and draws from a 2.2-gallon (8.2-liter) high-pressure reservoir. Active rear-axle steering articulates up to 6 degrees, turning in the opposite direction of the front wheels below 50 mph for tighter low-speed handling and parallel to them above 50 mph for high-speed stability. The GT 63 also comes standard with the AMG Race Engineer Control Unit, a trio of rotary dials in the center console that adjust accelerator response, agility (effectively a variable rear torque split that mimics shortening or lengthening the wheelbase), and traction control across nine stages. Mercedes-AMG calls it the most configurable AMG to date. Active aerodynamics include a standard retractable rear spoiler that selects multiple positions above 50 mph, optional Aerokinetics Venturi Flow elements that deploy from the underbody at 75 mph and 87 mph to generate suction-style downforce, and an optional active rear diffuser. An Airpanel system at the front actively opens nine stages of louvers behind both the central air intake and, for the first time on a Mercedes-Benz product, the brake-cooling intakes. Drag coefficient is 0.22. Inside the cabin Photo credit: Mercedes-Benz The interior features a 10.2-inch driver display and a 14-inch central touchscreen behind a single glass surface, plus a standard 14-inch passenger display with its own content. Mercedes-AMG has integrated artificial intelligence assistants from ChatGPT, Microsoft, and Google into the MBUX operating system. Three exclusive AMG apps cover real-time powertrain telemetry, drive-program customization and aerodynamic behavior, and on-track lap analysis via AMG Track Pace, which records more than 80 data points 10 times per second. Optional Sky Control switchable glass replaces a traditional sunshade with electronically controlled panels and adds an illuminated AMG crest pattern at night. The seven AMG Dynamic Select drive programs now include a dedicated Eco mode, a first for Mercedes-AMG, which limits output and routes power through the rear axle only to maximize range. What it means for buyers The GT 4-Door Coupe represents Mercedes-AMG’s first serious attempt at building a four-door electric performance car that can be driven hard, lap after lap, without thermal derating, and recharged quickly enough to make cross-country use practical. The combination of axial-flux motors, a directly cooled cylindrical-cell battery, and 600-kW charging is a notable jump beyond what the broader luxury EV segment, including the 2026 Volvo EX90 with its 800-volt system and Nvidia Drive Orin compute, currently offers. For the industry, the launch confirms that Mercedes-AMG plans to defend its performance positioning by transferring race-bred subsystems, in particular Formula 1 cell-cooling and the Predictive Performance Manager energy strategy, directly into showroom products. Production of the GT 4-Door Coupe takes place at Mercedes-Benz’s Sindelfingen plant in Germany, where Hall 32 has been retooled for the AMG.EA architecture, while the axial flux motor assembly is in Berlin-Marienfelde. Mercedes-AMG has not yet released U.S. pricing or final EPA range figures, both of which will likely arrive closer to the GT 55’s late-2026 on-sale date.