Mercedes-Benz Vision EQXX Triumphs in Arabian Desert Efficiency Run

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The Mercedes-Benz Vision EQXX has solidified its reputation for exceptional efficiency, conquering the demanding terrain and scorching temperatures of the Arabian desert in its latest feat.

New Efficiency Benchmark Set in the Desert

On March 15, 2024, during its third long-distance journey exceeding 1,000 kilometers, the VISION EQXX achieved a remarkable feat. Traversing a challenging route encompassing busy city streets and open desert, the car achieved an outstanding electric power consumption of 7.4 kWh/100km (8.4 mi/kWh). This translates to an efficiency equivalent to around 0.9 liters per 100 kilometers or a staggering 282 MPGe for a gasoline-powered vehicle. Remarkably, the VISION EQXX accomplished this in ambient temperatures reaching 34 degrees Celsius (93 degrees Fahrenheit), surpassing its own previous efficiency record by a significant margin.

The journey began at the Mercedes-Benz Center in Riyadh, Saudi Arabia, and concluded at the recently opened Mercedes-Benz Brand Center in Dubai, UAE. The 1,010-kilometer (627.6-mile) route included urban and suburban sections in both Riyadh and Dubai with heavy traffic, along with lengthy highway stretches across the open desert. The VISION EQXX completed the trip in 14 hours and 42 minutes, arriving in Dubai with 309 kilometers (192 miles) of remaining range after departing Riyadh with a full battery.

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Thermal Management and Solar Roof

This trip wasn’t just about showcasing efficiency; it provided a valuable opportunity to assess the performance of the VISION EQXX’s technological features under extreme desert conditions. The car’s advanced thermal management system, featuring an intelligent on-demand design, effectively kept the electric drivetrain and cabin cool despite the harsh environment. Notably, the air conditioning system remained operational throughout the journey with minimal impact on efficiency, thanks in part to the multi-source heat pump technology. This technology is being further developed and was recently integrated into the Concept CLA Class unveiled at IAA Mobility 2023, highlighting the transfer of learnings from the VISION EQXX to future production models built on the Mercedes-Benz Modular Architecture (MMA).

The relentless desert sun also provided an ideal testing ground for the VISION EQXX’s solar roof. The 117 solar cells onboard the car power various ancillary systems, reducing the load on the high-voltage battery and further enhancing overall efficiency. On the trip to Dubai, the system harvested 1.8 kWh of solar energy, contributing an additional 24 kilometers of range. Research into the potential for integrating this technology into future production vehicles is ongoing.

Even after more than two years since its unveiling, the VISION EQXX continues to captivate audiences. With over 23,340 kilometers (14,503 miles) accumulated across various demanding real-world conditions, the car has served as a valuable testbed for pioneering electric technologies. In a region traditionally associated with high-performance sports cars and large SUVs, the VISION EQXX’s compact dimensions and sleek design with a drag coefficient of just 0.17 generated significant interest. It serves as a compelling ambassador for electric mobility, particularly in regions where charging infrastructure is still developing, by demonstrating the potential for long-range electric efficiency in real-world scenarios.

Source: Mercedes-Benz Vision EQXX press release

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