Mercedes’ AMG division has revealed a concept EV that’s essentially a street-legal rocket. Powered by three axial-flux motors, it delivers 1,340 horsepower (985.5 kW) and reaches a top speed of 220 mph (354 km/h).
The new axial-flux motors are smaller, lighter, and more efficient. With a disc-shaped stator spinning parallel to the shaft, they’re 67% lighter, offering 3× the power density and 2× the torque of traditional motors.
Next-Gen NCMA Battery Boosts Power and Efficiency
The axial-flux motors are driven by a newly designed battery featuring oil-cooled, tall cylindrical cells using NCMA chemistry. This lithium-ion battery incorporates a nickel cobalt manganese aluminum oxide cathode, enhancing the standard NCM formula with added aluminum.The result: more capacity, higher energy and power output, with less cobalt and improved stability.
Mercedes-Benz
The Concept GT XX’s 800+ volt battery pack houses more than 3,000 NCMA cells, enabling ultra-fast charging at up to 850 kW. While Mercedes hasn’t disclosed the total capacity of the pack, it did confirm an energy density of 300 Wh/kg.
The motors sit in electric drive units (EDUs) with a planetary transmission and silicon carbide inverter. The rear unit has two motors making 860 hp, while the front holds one motor with a spur-gear setup.
Adaptive Aero Enhances Performance and Efficiency
Aerodynamics play a major role in the Concept GT XX’s performance, with a remarkably low drag coefficient of just 0.198. A streamlined body and actively adjusting aero wheels make this possible. These wheels use “cloaking” blades that adjust to either cool the brakes or enhance aerodynamics, depending on driving conditions.
The overall design is compact, aggressive, and steeped in nostalgia, with the front grille and hood strongly reminiscent of the classic 300 SLR.
The Concept GT XX features V8 sounds from headlight speakers, a yoke steering wheel, carbon fiber accents, and orange lighting. A programmable center tail light adds to its sleek, game-inspired interior.
Mercedes-Benz
Mercedes has confirmed that this concept is road-ready and headed for production. Futuristic features may be trimmed for production, but the drivetrain and aero systems actively demonstrate real-world readiness—pending durability tests.
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