Tim Levin

Mercedes-Benz’s electric concept car can travel up to 747 miles on a single charge.

The longest range electric car on the market is the 520-mile Lucid Air, priced at $169,000.

The Vision EQXX is not for sale.

Mercedes-Benz’s ultra-long-range electric car broke the previous record by driving 747 miles without stopping to recharge, the company said Thursday.

The sleek Vision EQXX drove from Stuttgart, Germany, to Silverstone, England. Earlier this year, Mercedes drove the concept car 626 miles, but reckons it could go even further.

The Vision EQXX foreshadows a future in which electric vehicles can travel great distances without people worrying about where to charge. Today, mileage anxiety – the fear of running out of energy before entering a charging station – is one of the top concerns of current and potential EV owners.

With this latest trip, Mercedes-Benz easily beats all electric cars on sale today. The Environmental Protection Agency estimates that the Model S, Tesla’s longest-range model, can travel more than 400 miles per charge. New startup Lucid Motors sells a $169,000 sedan rated at 520 miles, the longest range vehicle on the market.

In addition, Mercedes said that the air conditioning ran for about 8 hours of the 14.5-hour drive. That’s impressive, since air conditioning can be a significant drain on an electric car’s battery pack.

Mercedes does not intend to actually sell the EQXX. Instead, it is an ultra-efficient research vehicle built by the German automaker to test new technologies and explore electric vehicle range.

To optimize efficiency, Mercedes made the EQXX as light and aerodynamic as possible, since weight and aerodynamic drag are the two biggest enemies of range. Hence the teardrop shape and the swoop curve.

Mercedes has also developed a new battery specifically for the EQXX. It is 100 kWh, roughly the same capacity as that of the company’s EQS luxury sedan. But Mercedes managed to make the EQXX’s battery take up half the space and weigh 30 percent less.

The world may not need a 750-mile electric car as much as it needs a better, more plentiful electric car charger. Let’s face it: while a super-advanced car might be able to drive for 14 hours non-stop, we humans can’t. In any case, Mercedes has accomplished quite a feat.