2026 Mercedes-AMG GT XX destroys electric car distance

The wild 2026 Mercedes-AMG GT XX concept – that previews the next AMG GT super sedan – has covered an astonishing 5479km in just 24 hours, with most of the record set at speeds above 300km/h.

The Mercedes-AMG GT XX concept’s new range record set at an industry proving ground at Nardo in Italy has been independently verified.

More impressive, once the first 5479km in 24 hours was recorded, the prototype AMG went on to drive 40,075km – the equivalent of the Earth’s equator – in seven days, 13 hours, 24 minutes and 0.7 seconds.

Achieving a claimed average speed of 300km/h, the AMG GT XX only stopped for rapid charges at up to 900kW.

Beating the 3961km range record set by the new XPeng P7 earlier this month, the new distance set by Mercedes-AMG also overtakes the 3717km drive-in-a-full-day gong set by a new-generation CLA in November at the same facility.

In total, the AMG GT XX Concept broke 25 long distance records in a demanding schedule designed to test the advanced e-motors and how the battery copes under high-load driving combined with repeated high-speed charging.

Even though it averaged 300km/h, Mercedes-AMG said the new concept is capable of significantly higher speeds – 300km/h figure was calculated to be the optimal balance of track speed and charging stops.

Including stops, the total average speed over the full 24 hours was still an exceedingly quick 228km/h.

More remarkable is it wasn’t just one AMG GT XX that took part on the marathon range test but two, with both crossing the line after seven and a half days continuous driving, just 25km apart.

Incredibly, the AMG GT XX could have driven even further if conditions were more favourable.

During the day, track temperatures rose to 35C in the shade, with cooler ambient temps likely to have boosted efficiency further.

The evidence of the new range record suggests the 2026 Mercedes-AMG GT XX Concept is closer to the finished article than we think, controversial styling and all.

If so, the prototype’s remarkable record shows how the performance potential of next-gen EV powertrains are.

We just need the charging infrastructure to catch up, as a 24-hour run using our mostly 400V charging posts wouldn't be anywhere near as impressive.

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