The Mercedes-Benz VISION EQXX has driven over 620 miles on one charge, with an average consumption of 8.7 kWh/100 km.
Travelling from Sindelfingen across the Swiss Alps and Northern Italy, to its destination of Cassis on the Côte d’Azur, the Mercedes-Benz VISION EQXX covered more than 1,000 km in everyday traffic, on a single battery charge.
The journey started in cold and rainy conditions, and was undertaken at regular road speeds, including prolonged fast-lane cruising at up to 87 mph on the German autobahn and near the speed limit elsewhere.
The battery’s state of charge on arrival was around 15 percent, amounting to a remaining range of around 87 miles, and the average consumption was a record-breaking low of 8.7 kWh per 100 kilometres.
The long-distance drive was completed with the charging socket sealed and accompanied by an independent expert from certification body TÜV Süd.
The efficiency features of the Mercedes-Benz VISION EQXX include a major focus on aerodynamics, with a benchmark drag coefficient of 0.17, which has a particularly positive effect on fuel consumption at high speeds on the motorway. There’s a small frontal area of 2.12 m² and a reduced rear track; because this is 50 mm narrower than at the front, the rear wheels roll in the slipstream of the front wheels. An active rear diffuser, which automatically deploys at 60 km/h, provides better airflow and so contributes significantly to the reduced drag.
The VISION EQXX also has tyres with a significantly lower rolling resistance than the class A required by the EU tyre label and improved aerodynamic geometry, combined with lightweight magnesium wheels, provide more range.
The Mercedes-Benz VISION EQXX has a lightweight design concept; with the vehicle weighing 1,755kg.
The new drive concept developed by Mercedes-Benz achieves an efficiency of 95% from battery to wheels. There’s also innovative passive drivetrain cooling via a cooling plate in the underbody.
And ultra-thin solar roof panels feed the battery system and provide up to 25 km of additional range.
The technology in the VISION EQXX will be deployed in upcoming series-production Mercedes vehicles.