Mercedes-AMG GT XX sets world record: 3,404 miles in 24 hours

Mercedes' AMG GT XX concept vehicle, based on the AMG.EA platform, recently achieved a distance 38% greater than the previous record set by the Xpeng P7. The record attempt was part of the even more ambitious of traveling the Earth's circumference of 40,075 kilometers in eight days. This feat was achieved in 7 days, 13 hours, 24 minutes and 7 seconds. Two vehicles started simultaneously and reached the finish line almost simultaneously.

New thermal management: Immersion cooling

The GT XX Concept is equipped with three axial-flux motors with a total output of 1,000 kW. At its heart is an 800-volt immersion-cooled battery consisting of over 3,000 cylindrical NCMA cells for an energy density of more than 300 Wh/kg. The battery is enclosed in a laser-welded aluminum housing with an electrically non-conductive coolant, ensuring high continuous performance under extreme conditions.

Extreme testing conditions at 300 km/h and prototype charger

The conditions in Nardò were challenging: temperatures of over 35 degrees in the shade combined with sustained, long-term loads at a constant 300 km/h. Charging was carried out using specially developed prototype technology from Alpitronic, which enabled charging capacities of 850 kW, more than twice as much as today's high-power chargers with 350 to 400 kW. According to Mercedes, this combination of driving speed and charging capacity enables the best performance on long-distance journeys.

Outlook for the series-production GT

The AMG GT XX Concept is considered a study for the upcoming AMG GT 4-door with electric drive, which is expected in 2026. If the technology goes into series production, the charging speed in particular would be a unique selling point. The record-breaking drives demonstrate that thermal management with immersion cooling works reliably under sustained load in extreme conditions.