1,150-hp electric SUV: Mercedes-AMG's first ground-up build hits US next summer

Mercedes-AMG's first ground-up SUV is a 1,150-hp electric beast, and it's landing in the US next summer. The 2028 AMG GT SUV, revealed after the brand's GT four-door coupe grabbed attention earlier this year, marks the first time in AMG's 59-year history that it has developed a full-size SUV entirely in-house from the ground up. That's a historic pivot for a performance brand that has spent decades tuning and modifying existing Mercedes models rather than designing its own vehicles from a clean sheet.

The new EV rides on Mercedes' high-performance AMG.EA architecture, a dedicated platform engineered to combine sports-car handling with full-size SUV practicality. It's powered by three axial flux motors, a compact, power-dense design that delivers over 1,150 horsepower and ultra-fast charging capability. For a brand known for thunderous V8s and track-tuned sedans, this is a deliberate leap into the electric era without giving up the performance badge.

The significance goes beyond specs. AMG has historically been the in-house tuner, taking Mercedes-Benz models and cranking up power, stiffening suspension, and adding aggressive styling. Building an SUV from scratch is a different bet: it signals that the performance sub-brand is willing to invest in dedicated EV architecture rather than retrofitting an existing platform. That's a direct response to a luxury EV SUV market where buyers expect both utility and acceleration, and where competitors are already staking claims.

Axial flux motors are the technical story here. Unlike conventional radial motors, which generate torque around a rotating shaft, axial flux motors arrange the magnetic field along the axis of rotation, allowing for flatter, lighter, and more power-dense units. Three of them give the GT SUV its 1,150-plus horsepower, while the AMG.EA platform's ultra-fast charging aims to minimize downtime, a key concern for performance buyers who don't want to wait around at charging stations. The result is a vehicle that promises sports-car acceleration in a body that can haul a family.

The timing matters. With a 2028 model year and a US arrival next summer, AMG is positioning itself ahead of the next wave of electric performance vehicles. The SUV body style is the industry's cash cow, and pairing it with AMG's first ground-up EV architecture is a clear attempt to capture buyers who want speed and space in one package. It also gives AMG a halo product that can pull attention to its broader EV lineup.

For executives watching this space, the AMG GT SUV is a signal that dedicated performance EV platforms are becoming a competitive necessity. Rivals that have relied on shared architectures or converted existing models may need to rethink their roadmaps. The investment in a ground-up platform suggests AMG expects this segment to grow, not just as a niche but as a core part of its lineup. And with the GT four-door coupe already showcasing the same powertrain, AMG is clearly building a family of electric performance vehicles.

There are also second-order implications. The AMG.EA architecture could underpin future models, spreading development costs across multiple vehicles and giving AMG a scalable foundation for everything from sedans to SUVs. The focus on ultra-fast charging suggests AMG is betting on charging infrastructure improving quickly enough to support high-performance EVs, where battery drawdown is more aggressive. For now, the GT SUV is a statement: performance and utility can coexist in an electric package.

The bottom line: Mercedes-AMG is no longer just tuning SUVs; it's building them from the ground up for the electric era. The 2028 GT SUV arrives next summer with over 1,150 hp, a historic first for the brand, and a clear challenge to every other luxury automaker racing to electrify performance. For decision-makers, the takeaway is simple: the performance EV race just got a new benchmark.