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1008 km on a single charge and still left.  Mercedes showed what the EQXX can do

1008 km on a single charge and still left. Mercedes showed what the EQXX can do

A car that can handle 1,000 kilometers on a single charge. With this logo at the beginning of the year, Mercedes presented a prototype of the ultra-efficient Vision EQXX electric car. Now he decided to prove his abilities on the road from the car factory in Sindelfingen to Cassis on the French Cote d’Azur.

On this route from Germany through the Alps and northern Italy, the Vision EQXX traveled 1,008 kilometers without charging. On the other hand, after eleven and a half hours, even fifteen percent of the 100 kWh battery capacity remained at the destination, and the car reported a range of up to 140 kilometers. Power consumption was only 8.7 kW / 100 km, while electric cars usually operate at twice this consumption. The attempt was confirmed by the independent organization TÜV Süd, which shut down the car’s charging connector.

Sealed charging connector. | Photo: Mercedes

According to Mercedes, the trip was by no means an exceptional “eco walk” and the conditions weren’t ideal either. It was cold and raining at first in Schindelfingen, and at the opening part of the road an EQ xxx xxx xxx xxx xxx xxx was left on the highway at 140 kilometers per hour. The average speed of the entire road was also 87.4 km / h.

The EQXX can count on its strict aerodynamic profile in this respect. The convergent, tapered rear and other aerodynamic solutions reduce the aerodynamic coefficient to 0.17, and the front surface is only 2.12 square metres.

The tires’ lower rolling resistance helped too, with the special Bridgestone Turanza Eco having a rolling resistance factor of just 4.9, while the EQS model uses tires with a rolling factor of 5.9.

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The nearly five-meter-long car is also lightweight, weighing just 1,755 kilograms. According to Mercedes, this was to help the EQXX on a steep fourteen kilometer climb between the towns of Amsteg and Göschenen in front of the Gotthard Tunnel. This is due to foreign materials, such as the composite of carbon fibers and sugar cane, that make up the top cap of the faucet, or the aluminum cast floor.

The built-in 100 kWh battery also reduces weight, which is not much smaller than in the EQS model (usable 107.8 kWh), but at the same time it is half the size, and because it weighs 495 kg, it also weighs a third less. It will also fit a compact model. Power can also be continuously managed by a tuned electric motor, which has “only” 140 kW, but also an efficiency of 95 percent. It was created under the supervision of the specialists of the Mercedes-AMG F1 Team.

Plus, even on this steep climb, the EQXX didn’t have to open the cooling vents, so it didn’t unnecessarily increase air resistance. In addition to recovering when driving to the Mediterranean coast, the solar roof, which added 25 kilometers according to Mercedes’ calculations, also helped expand the range.

In a press release, the automaker promised: “The Vision EQXX has clearly demonstrated the exceptional energy-efficiency potential of electric vehicles. The drive to Cassis is a turning point in the longer journey to come. There will be many more.” “With the Vision EQXX, we will continue to test the limits of what is possible,” says Markus Schaefer, Mercedes’ chief development officer.

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You can find all about the concept of Vision EQXX technology in our previous article here.