With the CONCEPT AMG GT XX, Mercedes-AMG sets new benchmarks and continues the brand’s decades-long tradition of relentlessly pushing the boundaries of automotive engineering. From historic motorsport triumphs to legendary records on race and test tracks, the performance brand from Affalterbach has always stood for the pursuit of ultimate performance. Mercedes-AMG reaffirmed this commitment just last year with the lap record of the Mercedes‑AMG ONE (energy consumption combined weighted: 47.5 kWh/100 km plus 11 l/100 km | fuel consumption combined discharged battery: 15.8 l/100 km | CO₂ emissions combined weighted: 250 g/km | CO₂ class combined weighted: G | CO₂ class discharged battery: G) on the Nürburgring-Nordschleife. Since October 2022, the hypercar has remained the fastest production vehicle ever on the iconic circuit – having even beaten its own benchmark.
Now, the CONCEPT AMG GT XX builds on this proud legacy and delivers a powerful demonstration of the superior performance of the upcoming high-performance architecture AMG.EA. The technology pioneer is powered by revolutionary drivetrain technologies set to enter production next year with AMG.EA. Featuring three axial-flux motors and a directly cooled high-performance battery, the concept vehicle promises a new dimension of power and endurance. Mercedes-AMG has now proven exactly that under extremely tough conditions – the ultimate test evoking the record runs of the past, powered by the technology of tomorrow.
On the legendary high-speed test track in Nardò, Italy – a site where the world’s fastest cars have been tested for decades – the CONCEPT AMG GT XX broke a total of 25 long-distance records. Among them was the record for the greatest distance ever covered by an electric vehicle within 24 hours. The previous record was under 4,000 kilometers. The CONCEPT AMG GT XX has far surpassed this value: The technology platform traveled 5,479 kilometers in 24 hours – that is 1,518 kilometers more or around 38 percent further than the previous best.
But this was just one of many records that the CONCEPT AMG GT XX secured with a commanding lead. The technology pioneer’s extreme test lasted far longer than 24 hours. The goal: to drive “around the world in eight days” – a mission designed to prove the superior long-distance performance of the AMG electric drivetrain. The name of the challenge? A nod to Jules Verne’s famous novel “Around the World in 80 Days”.
The run followed an exceptionally demanding schedule. The greatest strain on motors and battery occurs under high-load driving and high-speed charging cycles. To simulate this scenario repeatedly, the CONCEPT AMG GT XX was tasked with covering as many kilometers as possible in the shortest possible time. Drivers maintained a constant speed of 300 km/h, stopping only to recharge at power levels averaging around 850 kW – far beyond what today’s charging infrastructure can provide. This once again underscores the future-proof capabilities of this production-ready drivetrain. After each charging stop, the vehicle accelerated back to 300 km/h – over and over, day and night, for eight relentless days.
Although capable of significantly higher speeds, the vehicle’s pace was deliberately set by the engineers based on extensive simulations. According to these analyses, 300 km/h offered the optimal balance between track speed and charging stops, delivering the fastest overall time.
In the early morning of 25 August 2025, the moment finally arrived: mission accomplished! The distance of 40,075 kilometres (24,901 miles) was covered in exactly 7 days, 13 hours, 24 minutes and 07 seconds – beating its own target of eight days by a wide margin. Along the way, the CONCEPT AMG GT XX set a number of additional performance records and even pushed on to reach yet another milestone at 25,000 miles.
It wasn’t just one CONCEPT AMG GT XX that mastered the extremely demanding marathon program – but two. Both vehicles set off simultaneously on the record-breaking drive and delivered a compelling demonstration of endurance: After more than seven and a half days of operation and a full circumnavigation of the globe each, they crossed the finish line just 25 kilometres apart – the equivalent of barely two laps on the Nardò proving ground. Completing this around-the-world challenge twice within eight days underscores, in striking fashion, the exceptional long-term performance capability of the powertrain.
The relentless program required 3,177 laps of the 12.68‑kilometre Nardò circuit. Experienced racing drivers completed two‑hour shifts in the seemingly endless round-the-clock race. On average, the CONCEPT AMG GT XX drove more than 5,300 kilometres per day. Conditions were also far from favourable. During the day, ambient temperatures rose up to 35 degrees Celsius in the shade – climbing even higher under direct sunlight on the exposed track. Yet the car’s revolutionary powertrain delivered flawless performance throughout.
The test was not only a feat of technology, but also of teamwork. From the pit crew handling charging and tyre changes, to the round-the-clock provision of fire and rescue services to the remote support room in Affalterbach, which was permanently connected to Nardò via remote diagnostics. External specialists – including tyre supplier Michelin and charging station specialist Alpitronic – rounded off the expert crew.
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