Mercedes-AMG says its Concept AMG GT XX set 25 long-distance records for battery-electric vehicles at Italy’s Nardò proving ground, including what it calls the greatest distance covered in 24 hours and an “around-the-world” run completed in less than eight days. The technology demonstrator logged 3,404 mi (5,479 km) in 24 hours, then reached 24,901 mi (40,075 km) in 7 days, 13 hours, 24 minutes, and 7 seconds, a result the company frames as proof of the upcoming AMG.EA platform’s endurance and charging capability.
Engineers held a steady 186 mph (300 km/h) target speed, stopping only for high-power charging that averaged about 1,140 hp (850 kW), according to Mercedes-AMG. After each stop, the car accelerated back to 186 mph (300 km/h) and repeated the cycle around the clock for eight days. Two GT XX prototypes ran the program in parallel and finished just 15.5 mi (25 km) apart, underscoring consistency across vehicles, the company said.
The concept previews key AMG.EA hardware, including three axial-flux motors and a directly cooled high-performance battery. Mercedes-AMG cites a peak output of more than 1,341 hp (>1,000 kW), with two oil-cooled motors packaged on the rear axle and a front booster motor that engages as needed for extra power or traction. The battery uses cylindrical NCMA cells in an 800-plus-volt architecture with direct oil cooling across more than 3,000 cells, a setup the company says supports high continuous power and very fast charging. Mercedes-AMG adds that the car can recover enough energy for roughly 249 mi (400 km) of WLTP range in about five minutes.
The run covered 3,177 laps of Nardò’s 7.88 mi (12.68 km) high-speed ring, averaging more than 3,293 mi (5,300 km) per day despite ambient temperatures reaching 95 degrees Fahrenheit (35 degrees Celsius). Mercedes-AMG credited support from partners including Michelin and charging specialist Alpitronic, along with a round-the-clock crew handling charging, tires, and remote diagnostics. Professional drivers rotated in two-hour stints; participants included Mercedes-AMG PETRONAS F1 driver George Russell, who called the axial-flux response immediate and precise.
Company leaders positioned the effort as a continuation of historic long-distance demonstrations and as a statement of intent for the brand’s electric era. Markus Schäfer, chief technology officer of Mercedes-Benz Group, called the program an attempt to redefine technical limits, while Mercedes-AMG chief Michael Schiebe said the brand is bringing axial-flux motors and directly cooled batteries to series production so customers “get a genuine AMG.”
