Mercedes Vision EQXX: how one charge lasted over a thousand kilometers
Aerodynamic drag, battery packaging, and two headline-making long-distance drives
The Mercedes-Benz Vision EQXX drove over 1 000 kilometers without a charging stop back in 2022. But the concept car's results are not a range promise for a production Mercedes. Here is the technology behind those drives—and the caveats that need to accompany the numbers.
By Amir HaddadTechnology editor · Future cars and modern carsTranslated from Swedish with the help of AI.
A concept car with a measurable mission
The Mercedes-Benz Vision EQXX, unveiled in January 2022, is a drivable concept car and technology demonstrator, not a production vehicle with a conventional model year. Its mission was clear: drive more than a thousand kilometers on one charge in real-world traffic conditions. The answer would not simply be a bigger battery, but a car that needed less energy for every kilometer.
That makes the EQXX interesting beyond the range headlines. Mercedes treated the body, powertrain, tires, and electronics as parts of the same system. Losses in one area must be offset by more energy in another. Reducing those losses instead allows for a more compact battery, which in turn makes packaging and weight management easier.
The car was also developed with help from Mercedes' motorsport expertise in the United Kingdom. The primary focus here was not maximum acceleration, but extracting as much useful work as possible from the stored energy. The EQXX is therefore more of a rolling development lab than a sports car in disguise.
Two long-distance drives—but no standardized range rating
In April 2022, the EQXX was driven from Sindelfingen in Germany to Cassis in southern France. It covered 1 008 kilometers without recharging along the way. Mercedes reported average consumption of 8,7 kWh per 100 kilometers and around 15 percent battery charge remaining on arrival, equivalent to approximately 140 kilometers of additional estimated range.
The route covered several types of roads and varying weather conditions. The reported average speed was 87,4 km/h. That is an important detail: a thousand kilometers in slow city traffic and a thousand kilometers at high highway speeds are entirely different engineering challenges. Aerodynamic drag becomes dramatically more significant as speed increases.
A longer drive from Stuttgart to Silverstone in the United Kingdom followed in June of the same year. This time, Mercedes reported 1 202 kilometers on one charge and 8,3 kWh per 100 kilometers. After arriving, the car was also driven around Silverstone, which was included in the reported total distance.
The results show what this particular demonstrator achieved under those specific conditions. They are not, however, a WLTP rating or a promise of what a customer car would always deliver. The figures come from Mercedes, and our editorial team has not independently verified the drives. Road profile, temperature, speed, and use of comfort features affect the outcome. The word record should therefore be read as a description of the project's achievements, not as a universal comparison of all electric cars.
The shape does much of the work
The EQXX's low nose, narrow cabin, and long, tapered rear end share a common purpose: letting air pass with as little disturbance as possible. Mercedes quotes a drag coefficient of 0,17. But the coefficient alone does not tell the whole story; the car's frontal area also determines how much aerodynamic drag it generates.
At the rear, airflow should leave the body as cleanly as possible. The extendable rear diffuser helps shape that flow without requiring the car to be the same length in every situation. The wheel design and specially developed tires also help limit aerodynamic drag and rolling resistance.
Cooling also influences the shape. Air channeled through cooling openings creates drag. The EQXX therefore uses features including an underbody cooling plate to dissipate heat and reduce the need for airflow through the body. More active cooling can be used when the load demands it. It is a trade-off, not free cooling under all conditions.
The battery stores just under 100 kWh of usable energy. Mercedes stated that the pack was significantly smaller and lighter than the battery in the EQS of the time. That comparison applies to the battery pack itself; it does not mean the EQXX offers the same cabin space, equipment, or range of uses as the luxury sedan.
What can a buyer actually get?
The cabin has four seats and a wide, continuous display. Among other things, the interface visualizes energy flows and how driving affects consumption. Here, the technology becomes a teaching tool: the driver can see the relationship between speed, the road, and energy demand, rather than simply watching a remaining-range figure.
We have not test-driven the car. Its clearest purpose is development and demonstration, not everyday ownership. The low body and specialized solutions must also be weighed against production requirements for space, manufacturing, servicing, and cost.
The EQXX was not launched as a model available to order and had no customer price. Mercedes described the project as a technological guide for future cars. That is a stated ambition; assuming a future Mercedes will automatically have the same range, however, is speculation. The confirmed achievement is narrower, but still impressive: a drivable concept car crossed the thousand-kilometer mark on real roads.
Sources
- Mercedes-Benz, VISION EQXX (2022)
- Autocar, Mercedes-Benz Vision EQXX review (2022)
- Top Gear, Mercedes-Benz Vision EQXX review (2022)
Ask questions about “Mercedes Vision EQXX: how one charge lasted over a thousand kilometers”. Answers are based on the magazine's own articles.
