Mercedes-AMG Reveals 1,153-HP GT SUV Flagship

Mercedes-AMG has revealed the GT SUV, its first full-size SUV developed entirely in-house, led by the flagship GT63 model with a peak output of 1,153 horsepower and 1,475 pound-feet of torque. The new model, based on the AMG.EA electric performance platform, will be available in three versions, GT53, GT55, and GT63, when it arrives at dealerships in summer 2027.

The GT SUV’s top-tier GT63 uses a three-motor configuration: one at the front and two at the rear, all axial-flux units engineered by Mercedes-owned Yasa. According to Mercedes, the GT63 accelerates from 0 to 60 mph in a claimed 2.4 seconds, with a top speed of 168 mph. The GT55 shares this tri-motor layout but delivers a lower peak output of 805 horsepower and 1,372 pound-feet of torque. The entry-level GT53 employs two conventional permanent magnet synchronous motors, one per axle, producing a combined 536 horsepower and 590 pound-feet of torque, with a 0 to 60 mph time of 4.1 seconds.

A key technical distinction for the GT SUV is its battery technology. The GT63 and GT55 feature a 128 kWh, 800-volt battery pack, 22 percent larger than the one in the AMG GT 4-Door Coupe, while the GT53 uses a 106 kWh pack. Mercedes says the GT63 can add up to 280 miles of range in just 10 minutes of DC fast charging at up to 710 kilowatts. The GT53 supports charging at up to 600 kilowatts, with a claimed 236 miles of range added in the same time frame. The GT63’s projected WLTP range is between 385 and 435 miles, but US EPA figures have not yet been announced.

Handling and ride quality are addressed by the new AMG Active Ride Control Plus suspension, standard on the GT63 and optional on the GT55. This system uses hydraulically interconnected dampers and adjustable air springs to manage body roll, pitch, and dive without traditional anti-roll bars. The GT63 also comes standard with the AMG Dynamic Plus Package, including the AMG Race Engineer Control Unit, which allows drivers to adjust motor response, handling, and traction through three rotary controls.

The GT SUV’s exterior design departs from Mercedes’ internal combustion models, with a blanked-off grille featuring an illuminated surround, six circular rear lights, and active aerodynamic elements such as the Aerokinetics Airpanel and an automatically adjusting rear spoiler on the GT55 and GT63. The SUV’s dimensions, 5,084 mm long, 2,001 mm wide, and 1,656 mm tall, make it longer and lower than the GLE 63 S, while the wheelbase stretches to 3,040 mm.

Inside, the driver-oriented cockpit includes a 10.2-inch digital instrument display, a 14.0-inch central infotainment screen, and an optional 14.0-inch passenger display. The rear bench seats three, and the cargo area offers 21.4 cubic feet behind the seats, expanding with the seatbacks folded. The panoramic glass roof can switch between transparent and opaque modes, and buyers can personalize the interior and exterior through the Manufaktur program.

AMG has engineered artificial engine sounds for the GT SUV, with simulated V8 acoustics for the GT55 and GT63 and six-cylinder effects for the GT53. These sounds, created from real engine recordings, change with acceleration and driving style, while simulated gear changes and seat vibrations aim to replicate the sensation of driving a traditional AMG.

Pricing for the US market hasn’t been released, but in Germany, the GT53 is already on sale starting at €113,050. The GT55 and GT63 will follow, with final figures for range and cost expected closer to the SUV’s arrival next summer. The magazine has also covered Mercedes-AMG’s enhanced power in the E53.