Norway’s El Prix range test has become one of the toughest real-world benchmarks for electric vehicles, and this year’s winter edition delivered some of the harshest conditions yet. Designed to measure how far new electric cars can travel in freezing temperatures, the El Prix range test pushes vehicles beyond laboratory assumptions and into real Scandinavian winter extremes. For potential EV buyers, the results provide a clearer picture of what happens when official range claims collide with reality.
Conducted by Motor.no’s editorial team, the El Prix range test places dozens of new electric cars on a predetermined public-road route. Each vehicle drives until it can no longer maintain the speed limit. This year, 25 new EVs faced temperatures plunging as low as -24°F (-31°C), far colder than previous editions, which rarely dipped below 14°F (-10°C). As a result, no participant managed to set a new winter range record, despite several cars boasting exceptionally high WLTP ratings.
The findings highlight a growing concern among EV owners in cold climates. While electric cars continue to improve on paper, extreme winter conditions still have a dramatic impact on usable range. The El Prix range test exists to quantify that gap and show drivers what to realistically expect when temperatures drop well below freezing.
How the El Prix Range Test Works
The El Prix range test follows a straightforward but demanding methodology. All vehicles begin with a full charge and follow the same route, maintaining legal speed limits under real traffic conditions. Drivers continue until the car can no longer sustain speed safely, ensuring consistent and comparable results.
This approach differs sharply from standardized laboratory testing. WLTP figures are measured under controlled temperatures and predictable driving cycles. In contrast, the El Prix range test exposes vehicles to cold-soaked batteries, icy roads, winter tires, and continuous cabin heating demands. As a result, the test reveals how much energy is lost to thermal management and resistance in extreme cold.
Motor.no runs the El Prix range test twice each year. The summer edition measures warm-weather efficiency, while the winter edition focuses entirely on cold-weather performance. Together, the two tests give a more balanced view of year-round EV usability.
Lucid Air Leads Distance but Loses Efficiency
In this year’s winter El Prix range test, the Lucid Air traveled the farthest overall, covering 323 miles (520 kilometers) before stopping. However, the result came with a significant caveat. Despite its impressive distance, the Lucid Air also showed one of the largest deviations from its official WLTP range.
Rated at 596 miles (960 kilometers) under ideal conditions, the Lucid Air experienced a range loss of approximately 46 percent in extreme cold. This placed it at the bottom of the efficiency ranking when comparing real-world performance against official claims. Similar gaps were observed in other large, premium EVs, including the Volvo EX90 and Opel Grandland.
These results underline a key lesson from the El Prix range test. High WLTP figures do not necessarily translate to better winter efficiency. Instead, battery chemistry, thermal management systems, and vehicle weight play critical roles once temperatures plunge.
Chinese EVs Deliver Surprising Results
One of the most notable outcomes of the El Prix range test came from unexpected contenders. Chinese-made electric vehicles demonstrated some of the smallest deviations between WLTP estimates and real-world winter performance.
The MG 6S recorded the lowest range loss in the test, with a 29 percent difference from its official figure. While still significant, this result stood out against losses exceeding 40 percent in several premium models. Close behind was the compact Hyundai Inster, also showing a 29 percent reduction, followed by the MG IM6 sedan at 30 percent.
These results suggest that efficiency-focused design and conservative WLTP ratings may offer advantages in extreme climates. Although these vehicles did not travel the longest absolute distances, they delivered more predictable performance relative to expectations, a factor many buyers value highly.
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Big Names Fall Short in Extreme Cold
Several well-known electric vehicles entered the El Prix range test with strong reputations and competitive specifications. Models such as the Tesla Model Y, Mercedes-Benz CLA, and Hyundai Ioniq 9 were expected to perform well. However, none of these vehicles finished near the top of the winter rankings.
Cold temperatures amplify weaknesses in energy consumption. Larger vehicles, in particular, struggle due to higher mass and increased heating requirements. Even advanced heat pump systems face limits when temperatures fall to record lows, as they must work harder to maintain battery and cabin temperatures.
Nevertheless, the test showed that range remains usable even under severe conditions. Vehicles like the Audi A6, BMW iX, and Volvo EX90 still delivered substantial real-world distance on a single charge. However, drivers should anticipate much shorter ranges than advertised when winter sets in.
Why Winter Testing Matters for EV Buyers
The El Prix range test serves a critical role in consumer education. Official range figures provide a standardized comparison, but they often fail to capture seasonal realities. For drivers in northern regions, winter performance can determine whether an EV fits their daily needs.
Cold weather affects all vehicles, not just electric ones. Internal combustion engines burn more fuel in winter, reducing mileage compared to summer driving. However, EVs face additional challenges due to battery chemistry sensitivity and auxiliary power demands.
By quantifying real-world losses, the El Prix range test helps buyers make informed decisions. It also encourages manufacturers to improve thermal efficiency, battery insulation, and software optimization for cold climates.
Records, Context, and the Road Ahead
The winter record for the El Prix range test remains held by the Tesla Model S, which achieved 330 miles (530 kilometers) in 2023 under milder winter conditions. This year’s Lucid Air came close but fell short due to significantly lower temperatures.
As electric vehicles continue to evolve, winter testing will remain essential. Battery technology, charging infrastructure, and software updates all influence how future models perform in harsh environments. Until then, the El Prix test stands as one of the most transparent and demanding measures of real-world EV capability in extreme cold.