2027 Mercedes-AMG GT 4-Door Coupe Is a RevolutionMercedes-Benz AG – Communications & Marketing (Mercedes-Benz AG – Communications & Marketing)Every automaker possesses its own shining qualities, and high-speed grand touring is one of those where Mercedes-AMG earns its highest marks. But in these turbulent times, the days of eating up autobahn miles by the handful in a two-door with a snarling V-8 out front may on their way out. To prove that it's more than able to bring the fight no matter what the future holds, Mercedes-AMG's new flagship model has four doors—and three very special electric motors.Yes, the 2027 Mercedes-AMG GT 4-Door Coupe is finally here, after more than a year of teasing from Affalterbach. The AMG GT 4-Door Coupe is not the first all-electric vehicle from Mercedes's performance wing—the SLS AMG Electric Drive from 2013 and a series of AMG-branded EQ SUVs predate it—but the battery-powered grand tourer opens a new chapter for the brand. The 4-door coupe, offered in GT63 and GT55 trims at launch, represents a revolution for Mercedes, as the automaker debuts a unique powertrain with record-breaking performance numbers.Mercedes-AMG (Mercedes-AMG)The heart of the AMG GT 4-Door Coupe is its 106-kWh battery pack. Transferring power from the battery to all four wheels is accomplished through three axial flux electric motors, courtesy of British manufacturer (and Mercedes subsidiary) Yasa. The combination yields a whopping 1153 horsepower peak in GT63 form and 805 horsepower in GT55 trim. Thanks to that nearly 1200 horsepower on tap, the GT63 variant boasts a claimed 0-60-mph run of 2.0 seconds and an electronically limited top speed of 186 mph. Peak torque sits at 1,328 lb-ft and 1,475 lb-ft for GT55 and GT63 variants, respectively.AdvertisementAdvertisementAMG engineers are no doubt proud of these performance metrics, but the core of the AMG GT 4-Door Coupe is its innovative engineering. The drivetrain platform, dubbed the Mercedes High Performance Electric Architecture, will serve as a basis for future AMG EVs, with axial flux electric motors as the key component. The non-traditional motor offers three times the power density, is two-thirds lighter, and occupies one-third of the space compared to a standard electric propulsion unit.Axial flux motors reverse the flow of electric energy, running the flux parallel to the motor's axis of rotation. In practice, this means power is more immediately available, but also that dynamic features like torque vectoring are more precise. (It's no wonder axial flux motors are exclusively found on other high-performance models like the Lamborghini Revuelto so far.)Two of the three axial flux electric motors are bonded together at the rear axle of the AMG GT 4-Door Coupe, in a package Mercedes is calling the High Performance Electric Drive Unit. This connects these two motors through a planetary gear system, which is fed by a series of hydraulic pumps and suction filters. The dynamic result is much like a limited-slip differential, only more advanced and capable of millisecond-speed torque adjustment. The remaining motor is positioned at the front, driven by a spur gear and activated only when power or traction is required of the northern wheels. Typically, the front e-motor is disconnected for efficiency, but it can rapidly re-couple when the car demands extra power or traction.Mercedes-AMG (Mercedes-AMG)Mercedes has long touted trickle-down engineering from Formula 1, and the G GT 4-Door Coupe is, naturally, a recipient of such. The 800-volt NCMA battery pack was developed by Mercedes's F1 powertrain team in the United Kingdom and inspired by the Mercedes-AMG One hypercar, but the real story is its new full-tab cell design and composition. This packaging improves thermal regulation through a focused coolant-guidance system, offers better heat dissipation than steel, and adds structural rigidity to the car. Better heating and cooling mean maximum electric power is more consistently available from its 2660 battery cells; Mercedes says the battery's optimal operating temperature range is wider and more precisely tuned than any of its cars before.AdvertisementAdvertisementTemperature control is critical not only for power delivery but also for charging. Thanks to a maximum 600-kilowatt charging rate, the GT 4-Door Coupe boasts a 10-percent-to-80-percent charging time of just 11 minutes if you can find a strong enough charger. If time is not of the essence, the battery system can also revert to a 400-volt setup, offering a more gentle charging rate and keeping battery temperatures lower. EPA range estimates are not yet available for the car, but the often-overenthusiastic WLTP figure indicates the grand tourer could go as far as 435 miles on a single charge.Mercedes-AMG (Mercedes-AMG)The GT 4-Door Coupe wouldn't be an AMG product without serious dynamic hardware and software. Active Ride Control air suspension with semi-active roll stabilization is standard on all models, offering a range of comfort-oriented and track-ready damping rates. These semi-active shock absorbers serve as a replacement for traditional anti-roll bars on the cars, as the struts are hydraulically connected through a central pump. The air suspension also offers ride height adjustment, thanks to an 8.2-liter pressure reservoir.Other critical suspension upgrades include forged aluminum steering components at the front end, save for the tie rods. Carbon ceramic brakes are standard on the front, while the rear end uses steel braking hardware. Up to six degrees of rear-wheel steering is also available through an electro-mechanical steering actuator, which adjusts the rear toe links to provide directional or counter-directional rear-steering depending on speed.Software is as important as hardware these days, and the GT 4-Door Coupe has no shortage of electronic handling tricks. AMG's Race Engineer Core is the supercomputer that manages all dynamic functions, controlling everything from the electric motors to the all-wheel-drive system. A three-step AMG Race Engineer rotary controller on the center console allows for adjustment to the e-motor acceleration rate, torque vectoring sensitivity, and slip angle. (AMG is particularly proud of the Agility Control option, which varies torque distribution to each wheel and can create the sensation of a shorter or longer wheelbase behind the wheel.)AdvertisementAdvertisementPlus, there is no shortage of drive modes. Mercedes offers six different drive modes (Comfort, Sport, AMGForce Sport+, Race, Slippery, and Eco) as well as an individual mode for setting things up your own way. We took a deep dive into the AMGForce Sport+ mode, which features fake V-8 noises and simulated gear shifts; read more about that here.Mercedes-AMG (Mercedes-AMG)Aerodynamics is a critical component of building a fast and efficient electric vehicle. To that end, the fastback GT 4-Door Coupe is so low-slung, Mercedes says the electric four-door is actually four centimeters closer to the pavement than its gasoline-powered predecessor. Two active, speed-dependent aero elements built into its undertray help suck the car toward the pavement as speed increases. Meanwhile, an active rear spoiler deploys at speeds upward of 50 mph, adopting its steepest position at higher velocities for maximum downforce. Finally, an active rear diffuser helps round out a drag coefficient of just 0.22, making the AMG GT 4-Door especially slippery.The interior of the GT 4-Door Coupe is typical of a modern Mercedes. A 10.2-inch instrument cluster and the 14.0-inch multimedia monitor dominate the dashboard, while another 14.0-inch multimedia monitor for the front seat passenger is available. Other tech features include a tinted panoramic glass roof, various ambient light settings, and an AMG Performance Menu that offers a window into the movement of the model's active aero features and shows the energy flow within the drivetrain. There's also a built-in track mode that can record lap times and point out optimal braking points.Mercedes-AMG (Mercedes-AMG)Long-term comfort is critical for a gran turismo, so Mercedes developed new front seats for the GT 4-Door Coupe. Mercedes says the chairs offer motorsport-typical lightness with distinctive seat-back contours, though hardcore enthusiasts can opt for more extreme AMG Performance seats. Of course, the ability to take people along is core to the grand touring mission, so the GT 4-Door Coupe provides for rear passengers. Two molded seats adorned the back of the cabin, with carved-out foot recesses to ensure drivetrain components don't infringe on foot space. The rear seats can also be split or entirely folded down for large cargo.AdvertisementAdvertisementProduction of the 2027 Mercedes-AMG GT 4-Door Coupe will begin this summer at the Mercedes-Benz plant in Sindelfingen. Hall 32 of the storied plant has been specifically upgraded to handle assembly of the EV, while other key components are stamped and painted on-site as well. The axial flux motors are produced in Berlin, Germany, with over 100 production processes required to complete the component.Pricing details and production numbers have yet to be revealed, but the brand says costs will be "based on comparable predecessor vehicles." The current gas-powered AMG GT63 4-Door Coupe starts around $160,000, while the plug-in hybrid GT63 S E-Performance version starts just over $200K; we'd guess the new all-electric GT63 will land somewhere between those figures.You Might Also LikeIf You Can Only Own One Car, Make It One of TheseThese Are the Most Popular Cars by State
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