A technological tour de force, Mercedes-Benz’s Concept AMG GT XX has shattered conventional EV charging limitations with an unprecedented charging speed of 400 kilometers (approximately 248 miles) in just five minutes. This groundbreaking achievement leverages a high-voltage system exceeding 800V, enabling an average charging power above 850 kW across a broad state-of-charge range.
The prototype charging station, developed in collaboration with industry leader Alpitronic, operates with a standard CCS connector while delivering performance unmatched by any commercial charging infrastructure available in 2025.
The supercar’s propulsion system proves equally revolutionary, featuring three axial flux motors that generate a combined output exceeding 1,360 horsepower. This motor architecture—with one unit powering the front axle and two driving the rear—achieves remarkable packaging efficiency, occupying just one-third the volume of conventional designs while weighing two-thirds less.
Engineers implemented rectangular copper coils to maximize conductive material within the limited space, dramatically increasing power density. This approach significantly outperforms the current AMG EQS dual-motor system that delivers 649 horsepower in its standard configuration.
Mercedes-AMG’s Formula 1 expertise manifests in the GT XX’s high-performance battery system. Sophisticated thermal management maintains ideal operating temperatures during both high-speed driving sessions and ultra-fast charging events.
The specialized battery chemistry, drawing on developments from the AMG ONE hypercar program, facilitates extreme energy absorption and discharge rates with consistent repeatability. The integration of smart charging technology allows for optimal electricity load management, further enhancing the vehicle’s performance capabilities.
Current production EVs pale in comparison to the GT XX’s charging capabilities. While the AMG EQS—featuring a 118-kWh battery—requires 31 minutes to charge from a 10-80% state using its 200-kW fast-charging system, the GT XX represents a quantum leap forward.
With a top speed exceeding 224 mph, this technology effectively eliminates charging downtime as a limitation for track use.
The collaboration with Alpitronic demonstrates the infrastructure requirements for next-generation electric supercars. The impressive drag coefficient of 0.198 contributes to the vehicle’s exceptional range and energy efficiency, making the breakthrough charging capabilities even more impactful. Their prototype station delivers an astounding 1,000 amperes at over 800 volts, establishing Mercedes-AMG at the forefront of electric performance vehicle development.
Such advancements will inevitably cascade through the automotive industry, accelerating the shift toward high-performance electric mobility.
