Mercedes EQXX (2022): fully electric 1000 km without charging stops

Mercedes has covered 1008 kilometers with the EQXX – with the TÜV-sealed tailgate from Sindelfingen to Cassis on the Côte d’Azur. In eleven hours and 32 minutes from Germany via Switzerland through Italy to France. Average speed 87 km/h, consumption: 8.7 kWh/100 km.

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That corresponds to around 2.50 euros per 100 kilometers – at current fuel prices, we now pay almost that much for a liter of Super Plus. In the end there was even a range of over 140 kilometers left.

The Mercedes EQXX drives more than 1000 km at a maximum speed of 140 km/h

During the record run on April 5, 2022, it rained at 5 degrees in Stuttgart, there was a traffic jam at the Gotthard, there were many construction sites in Italy, and the sun was shining in France.

Mercedes Vision EQXX

Sealed: TÜV sealed the charging port for the record attempt.

The EQS escort vehicles had to charge in between, the EQXX was not allowed. He never drove faster than 140 km/h, although he could. The top speed is over 200 km/h.

Optics: The EQXX gives a preview of upcoming EQ models

Visually alone, the Vision EQXX makes a lot, the aerodynamic shape allows the car to stand elegantly on its wheels and gives it a certain lightness. The mostly closed front has headlights, which are of course reminiscent of the EQ family and give a glimpse of the upcoming lighting graphics at Mercedes.
The small air intake is mostly closed and is only opened when needed. On the side, aerodynamically optimized rims and special tires that are designed to reduce air turbulence to a minimum are striking.
Mercedes Vision EQXX

The rear is reminiscent of the IAA study from 2015. With the EQXX, however, the conclusion is solved much more elegantly. The active diffuser ensures the right pressure conditions.

The retractable door handles are standard parts from Mercedes EQS, S-Class and SL. Mirror housing and glass are a component that is reminiscent of Polestar and also helps with aerodynamics. At the rear, the EQXX not only converges visually, the track is also narrower than at the front. At the rear, an extendable diffuser ensures the right pressure conditions and the smoothest possible flow. The rear is reminiscent of the Concept IAA from 2015, but looks much more practical here.

Aerodynamics: With the EQXX, design came after function

However, the design department was only allowed to approach the car in the second instance. First it was the turn of the aerodynamicists. They defined many areas of the vehicle even before the visual development of the EQXX. In addition to the body, special rims and even special tires were designed, all in the service of the smoothest possible air flow.

Mercedes Vision EQXX

The EQXX is trimmed for maximum aerodynamics. This is also shown by the airflow at the front.

The result was a drag coefficient of just 0.17. Such values ​​were already achieved at Mercedes in 1978 with the C111 III test vehicle (0.18). The big difference: the EQXX is street-legal and does not need a paneled wheel housing. The study even has a chassis number so that it can later prove its ability under real conditions with a regular number plate.

Drive and battery: more than 1000 km electric range in the EQXX

The 100 kWh battery in the Vision EQXX weighs 495 kilograms, a third less than in the EQS. This battery fits into a 2800 millimeter wheelbase and will go into series production in the compact series versions of the EQXX from 2024.
The developers received support for the adjustment of the up to 150 kW (204 hp) strong electric motor in the rear from the in-house Formula 1 and Formula E racing teams. It is said to have an efficiency of 95 percent. The operating voltage of the system is also unusually high at more than 900 volts. The battery pack is only half the size of an EQS, 30 percent lighter and has almost the same capacity at around 100 kWh.
Mercedes Vision EQXX

The EQXX manages more than 1000 km with one battery charge.

Mercedes has joined forces with its cell supplier CATL and increased the silicon content in the battery cells. Coupled with other adjustments, the energy density of the batteries could be almost doubled. With a capacity of 100 kWh and a power consumption of less than 10 kWh/100 km, with this recipe the distance previously reserved for diesel vehicles seems to be within reach.

The 117 solar cells in the roof, which should provide an additional 25 km range under favorable conditions, also play a small part in this. If you roughly calculate the power consumption of the entire vehicle, the EQXX is even the first electric one-liter car.

Bionic casting: rigid construction without unnecessary material

But not only the drive or the cell chemistry allows the Mercedes study this enormous range. At around 1750 kilograms, the EQXX is also incredibly light for an electric car. The engineers at Mercedes achieve this with a new type of construction for the cast components. This is called bionic casting, and it allows the most robust component to be manufactured with as little material as possible.

The casting elements are completely calculated by software that actually comes from the gaming sector. The result: extremely aesthetic molds that have the same wall thickness at no point and, at least in simulations, even withstand crash tests.

In the EQXX, components developed in this way can be found in the front spring domes, the mount for the wiper motor and in the rear end construction. The technology can already be found in series production at Mercedes, but only for very small components, such as the rear mount for the seat belt retractor in the EQS.

Interior: vegan materials and the next MBUX level

Despite all the very technical innovations, the EQXX also has a particularly attractive interior in the best show car manner. It’s completely vegan here, meaning no animal-based materials are found. Instead, materials such as cactus and mushroom leather or bamboo fibers are used here.

The highlight in the interior is the monitor in the dashboard, which extends across the width of the vehicle. It is an instrument cluster and infotainment screen at the same time and shows where the MBUX system is headed. The voice control “Hey Mercedes” has a more human character in the MBUX vision of the future and is now shown on the screen as an animated head, the voice output also sounds more like a real person than before.
Mercedes Vision EQXX

Unlike many other concept cars, the EQXX is a real car that has to prove itself on the road.

In addition, the user interface should be significantly more variable and adapt to the respective needs of the occupants. To ensure that every seat in the EQXX has the right ambience, the seats have loudspeakers in the headrests. While the driver is listening to stimulating music, the passenger can relax at the same time. In addition, actuators in the seat should either enhance the sound experience or tactilely reinforce warnings. An approach that is intended to bring more individuality to the vehicle, especially on long journeys.

Outlook: Autonomous driving increases comfort requirements

All of this should enable comfortable travel on a route that was previously unthinkable for electric cars. In addition to the technical components, the amenities in the interior must also be right. New demands will arise here in the future, also with a view to autonomous driving.

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