CONCEPT AMG GT XX: Record-Breaking Performance

CONCEPT AMG GT XX: Record-Breaking Innovations for Relentless Performance

Mercedes-AMG has once again redefined the limits of endurance and electric performance with the CONCEPT AMG GT XX, setting 25 long-distance records on the legendary Nardò test track in Italy. Covering an astonishing 40,075 kilometers in under eight days—the equivalent of circumnavigating the globe—the vehicle achieved this feat at a constant running speed of 300 km/h, proving both its engineering superiority and the relentless pursuit of innovation by AMG.

Around the World in Eight Days

In an extreme stress test, two CONCEPT AMG GT XX vehicles lapped Nardò for 7 days, 13 hours, 24 minutes, and 07 seconds, breaking record after record. Among the achievements was the longest distance ever covered by an electric vehicle in 24 hours. Remarkably, this benchmark wasn’t just broken once, but surpassed 14 times over the course of the test.

Such relentless performance was made possible by revolutionary drivetrain technologies that will soon enter production in AMG’s upcoming AMG.EA high-performance EV architecture.

Cutting-Edge Drivetrain and Cooling Technology

At the heart of the CONCEPT AMG GT XX are three axial flux motors paired with a direct-cooled high-performance battery. This combination provides both immense power and unmatched efficiency. To support sustained high output, AMG engineers developed a Central Coolant Hub (CCH), integrating advanced cooling pumps, sensors, and valves to manage diverse thermal needs across components.

Complementing this is a passive underbody cooling plate, developed in collaboration with Mercedes-AMG High Performance Powertrains, ensuring energy efficiency and minimizing aerodynamic drag. Unlike conventional EVs that often reduce power output under thermal stress, the GT XX maintained full performance in every condition—whether after extended high-speed runs or rapid recharging sessions.

Aerodynamics: The Silent Performance Partner

At 300 km/h, more than 80% of energy is consumed overcoming aerodynamic drag. AMG optimized the GT XX’s aerodynamics to deliver an extraordinary drag coefficient of just 0.19. This was achieved through a sleek low-slung body, optimized airflow management, a refined underbody contour, and new 20-inch aero-enhanced wheels.

These innovations provided not only high-speed stability but also efficiency gains equivalent to saving 90 kg in weight—critical to endurance performance.

Ultra-Fast Charging Innovation

Performance wasn’t limited to the track. AMG, together with Alpitronic, developed a prototype charging station capable of delivering up to 1000 amps via a CCS cable. This breakthrough enabled the CONCEPT AMG GT XX to charge at 850 kW on average during the endurance run.

To support this, AMG built a temporary High-Power Charging Hub at Nardò, boasting a 2.5 MW capacity. This infrastructure allowed the vehicles to resume full-throttle laps almost immediately after charging.

Formula 1®-Derived Intelligence

Software was as critical as hardware. AMG engineers leveraged Formula 1® expertise to create a Battery Management System with “virtual sensors” that model internal battery cell behavior in real-time. Combined with Predictive Performance Manager (PPM) software, the system provided drivers with acoustic and visual cues for optimized performance, including AR-based instructions via a next-generation augmented reality racing helmet.

Driver-Centric Innovation

Inside, the CONCEPT AMG GT XX integrates a bespoke UI/UX system, displaying real-time performance metrics, charging status, and lap information across dual screens. The augmented reality helmet, developed with ETH Zurich start-up Aegis Rider, projects vital data into the driver’s field of vision without distraction.

Even small details like the steering wheel LEDs—inspired by Formula 1®—conveyed status updates during charging and racing.

A New Era of AMG Performance

With the CONCEPT AMG GT XX, Mercedes-AMG has reaffirmed its legacy of technological leadership. As Markus Schäfer, CTO of Mercedes-Benz, put it:
“Our mission is to redefine the very standards of performance with groundbreaking technologies and innovations. With the GT XX, we are entering a new dimension of electric performance.”

And as Michael Schiebe, CEO of Mercedes-AMG GmbH, added:
“At AMG, innovation has a clear purpose: it must deliver performance for our customers. The GT XX proves that sustained electric power at extreme levels is not only possible but production-ready.”

Conclusion

The CONCEPT AMG GT XX is more than a record-breaking machine—it’s a glimpse into the electrified future of performance driving. With axial-flux motors, advanced cooling, ultra-fast charging, and Formula 1®-derived intelligence, AMG has demonstrated that the era of electric supercars is not only here but capable of rewriting the record books.