Efficiency & Charging

9.5/10

Performance & Driving Dynamics

9.5/10

Interior & Technology

9.5/10

Practicality & Usability

8/10

Value & Running Costs

7/10

Overall

8.5/10

Overview

The Mercedes-AMG GT SUV is the first SUV AMG has engineered entirely in-house and the second model on its dedicated AMG.EA electric architecture, after the GT 4-Door Coupe. It targets the Porsche Turbo Cayenne Electric and Lotus Eletre and, with up to 1,153bhp, it is the UK's most powerful production SUV. Three versions are on offer: the GT 53, GT 55 and GT 63. They all target supercar pace, a usable five-seat cabin and ultra-rapid charging speeds. Its strengths are ferocious acceleration, a roomy flat-floored interior and a low, sporty driving position. However, it does also come with a kerb weight approaching 2.7 tonnes, a steep price and a synthetic engine soundtrack that divides opinion.

Design

At 5,084mm long, 2,001mm wide and 1,656mm tall, the GT SUV is a substantial machine, but a flat windscreen, long roofline and frameless side windows give it a coupe-like profile. Small bonnet power domes, flared arches and front fender vents add muscle. The grille is a narrower, higher take on the GT 4-Door Coupe's open-mouth look, with eight vertical bars and a large star that can both be illuminated. At the rear, six turbine-inspired circular taillights sit in a black panel, with an optional full-width light strip. Flush pop-out door handles, an active grille and, on the GT 55 and GT 63, an active tailgate spoiler help achieve a drag coefficient of just 0.27, remarkable for an SUV. Wheels grow up to 22 inches, and the Manufaktur programme offers more than 60 paint finishes.

Interior

The cabin carries over the driver-focused layout of the GT 4-Door Coupe, with a low seating position that feels closer to a sports car than a conventional SUV. A 10.2-inch instrument display sits alongside a 14-inch central touchscreen angled towards the driver, with an optional 14-inch passenger screen completing the set. The software is built on MB.OS, with MBUX integrating 3 AI agents and AMG apps such as Track Pace telemetry. Three physical rotary controls on the centre console adjust throttle response, cornering agility and traction control, sparing drivers from digging through menus to find these. Diamond-pattern stitching, floating armrests, and a Sky Control panoramic roof with electrochromic dimming is standard. Options include heavily bolstered AMG Performance seats, an illuminated glass roof and a Burmester 4D sound system.

Performance & Powertrains

The flagship GT 63 uses 3 axial-flux motors, with the front unit acting as a booster, to deliver a peak of 1,153bhp and 2000Nm of torque . It reaches 62mph in 2.5 seconds and 124mph in 6.8 seconds, with a 155mph top speed that rises to 168mph with the AMG Driver's Package. The GT 55 peaks at 805bhp and 1860Nm, reaching 62mph in 2.8 seconds. The GT 53 uses two synchronous motors for 536bhp and 800Nm, taking 3.8 seconds to go 0-62mph.

The 63 and 55 share a 128kWh, 800V battery, of directly cooled round cells, good for up to 435 miles of range, while the GT 53 has a smaller 106kWh and a 415-mile maximum. Peak DC charging reaches 710kW on the larger pack, adding up to 280 miles in ten minutes and going 10-80% in as little as 12 minutes, while the GT 53 manages a still-impressive 600kW. To manage a kerb weight of up to 2,695kg, AMG fits Active Ride Control+ air suspension with pitch and roll stabilisation, rear-axle steering and fully variable AWD. The GT 63 adds carbon-ceramic brakes. Seven driving modes run from Comfort to Race, and Force Sport+ adds a simulated V8 or six-cylinder soundtrack with vibrations in the seats.

Practicality

The GT SUV is strictly a 5-seater, but its taller body allows for a completely flat rear floor. The 3-seat bench has power-folding headrests, and rear passengers enjoy generous headroom and legroom. Luggage space is 607 litres with the seats up, a big jump from 415 litres in the GT 4-Door Coupe, and expands to 1,740 litres with the rear seats folded. A 78-litre frunk, opened by waving over a sensor on the bonnet, almost doubles the coupe's 41 litres and fit charging cables nicely.

Buying

The GT 53 is on sale in from £113,775. The GT 55 and GT 63 follow from April 2027, with first deliveries in the spring. Active Ride Control+ is standard on the GT 63 and optional on the GT 55, while the long Manufaktur options list could inflate prices quickly. Against the Cayenne Turbo Electric and Eletre, the headline power and charging figures are outstanding, though the value proposition is slightly worse. The EV Hub recommended configuration is the GT 55 with the larger 128kWh battery. This gets a 435-mile range, 710kW charging and continuous power of the GT 63 for what should be a meaningful saving, sacrificing only peak output and a few tenths of acceleration.