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In the most severe cold-weather comparison covered here, the Lucid Air went 519 km (about 322 miles) in temperatures as low as -32°C. That was the longest measured distance in the 2026 Norwegian El Prix, but it was also 46% below the car’s 960-km WLTP rating. If you care about keeping the largest share of an official range figure, the Hyundai Inster and MG IM6 were the leaders, each with a reported 29% WLTP deviation. Those are different definitions of “best,” and the distinction matters when planning winter trips.
Which EVs have the best real-world range in cold weather?
There is no universal winter-range champion because cold-weather performance depends on the temperature, route, speed, heating demand, tires, load, battery condition and the test’s stopping rule. The clearest current evidence comes from Norway’s NAF and Motor El Prix tests, which drive Norwegian-market electric vehicles together under comparable conditions and compare the measured distance with each vehicle’s WLTP rating.
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The 2026 El Prix is the severe-cold benchmark: 24 EVs were tested, with temperatures ranging from -7°C in Oslo to -32°C on the coldest sections. The Lucid Air covered 519 km (about 322 miles), the greatest distance reported from that test. Its 960-km WLTP rating means the measured result was 46% lower. The Hyundai Inster and MG IM6 retained the largest proportion of their own ratings, each with a reported 29% deviation, although their absolute distances were 256 km (159 miles) and 352 km (219 miles).
The 2025 El Prix produced a different headline. In milder temperatures of -6°C to +8°C, the Polestar 3 traveled 537 km (about 333 miles), a test record under those conditions, and finished 4.1% below its WLTP figure. Because the weather and methodology differed, that result is not a same-condition comparison with the 2026 Lucid Air result.
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Two honest ways to rank winter range
Greatest distance before the test stopped
This is the practical “how far can it go on one charge in that test?” measure. It favors vehicles that can cover more kilometers before reaching the stopping point, regardless of how large their official rating is. By this measure, the 2026 leader was the Lucid Air at 519 km; the 2025 leader was the Polestar 3 at 537 km in substantially milder weather.
Smallest loss versus the vehicle’s own WLTP rating
This percentage shows how closely a car matched its advertised European test-cycle range. It is useful for judging consistency, but it does not identify the car that traveled farthest. A smaller vehicle with a lower WLTP number can retain a high percentage while still covering fewer kilometers than a large vehicle with a greater absolute range. A 29% deviation means the measured result was roughly 71% of that vehicle’s WLTP figure in the stated test; it does not mean the car traveled 29% as far as the Lucid Air.
| Metric | What it answers | 2026 result | 2025 result |
|---|---|---|---|
| Measured distance | Which car went farthest in that test? | Lucid Air: 519 km (about 322 miles) | Polestar 3: 537 km (about 333 miles) |
| Deviation from WLTP | Which car stayed closest to its own official rating? | Hyundai Inster and MG IM6: about 29% deviation | Polestar 3: 4.1% below WLTP; BYD Tang: 9.6% below; Mini Countryman: 10.4% below |
Always read either number alongside the test temperature, vehicle version, route and stopping rule. A distance record from a mild winter day should not be presented as proof of superior performance at -30°C.
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What the severe-cold 2026 El Prix actually found
NAF’s 2026 release reports an average range shortfall of 38% versus WLTP across the tested vehicles. The range of -7°C to -32°C was far harsher than the previous year’s conditions. NAF senior communications adviser Nils Sødal noted that the Lucid spent a long time driving at around 30 degrees below zero when discussing its 46% deviation. That context explains why the longest-distance result can coexist with a large percentage loss: the Lucid started with an unusually high official range, yet the cold affected its efficiency substantially.
| Vehicle | 2026 measured distance | Approximate miles | Reported WLTP deviation | How to interpret it |
|---|---|---|---|---|
| Lucid Air | 519 km | 322 mi | 46% below a 960-km WLTP rating | Longest measured distance, but a large percentage shortfall in severe cold |
| Hyundai Inster | 256 km | 159 mi | About 29% | Among the best at retaining its own rating, but not a distance leader |
| MG IM6 | 352 km | 219 mi | About 29% | Among the best at retaining its own rating; longer absolute distance than the Inster |
| All 24 tested EVs | Not stated as a single combined distance | Not stated | 38% average shortfall | Average only; individual cars varied substantially |
The 2026 figures describe cars sold in Norway and use WLTP, not the U.S. EPA rating system. A North American buyer should verify the exact local model, trim, wheel package and battery before translating these percentages into a personal trip estimate. Even within one model line, a different wheel-and-tire package or drivetrain can change consumption.
What the milder 2025 test adds
The 2025 comparison is valuable because it shows how much the weather envelope can change the ranking. Temperatures ranged from -6°C to +8°C, and the average deviation from WLTP was 19.4%, roughly half the 2026 average shortfall. The leading results were:
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| Vehicle | Measured distance | Approximate miles | Deviation from WLTP |
|---|---|---|---|
| Polestar 3 | 537 km | 333 mi | -4.1% |
| BYD Tang | 479 km | 298 mi | -9.6% |
| Mini Countryman | 357.6 km | 222 mi | -10.4% |
NAF test chief Kjersti Stuestøl describes the test as a comparison tool rather than a definitive answer: the cars run at the same time under the same conditions and assumptions, which makes relative performance useful. The 2025 and 2026 results still cannot be merged into one league table because both the temperature range and the test procedure changed. The Polestar’s 537 km remains the winter-distance record reported for the 2025 event, but it was established in conditions between -6°C and +8°C, not in the 2026 cold snap.
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Why the test stopping rule changes the meaning of a record
NAF says the 2025 test ended when a vehicle could no longer maintain the local speed limit. Earlier tests continued until a car physically could not move. A vehicle that stops for failing to maintain the required speed can show a shorter distance than one allowed to crawl onward, even if both have similar energy remaining. That methodology change limits direct “all-time record” claims.
The El Prix result is a controlled depletion comparison, not a recommendation to drive until the battery reaches zero. NAF’s 2026 release separately reports remaining-distance information at 20% battery and notes that drivers typically charge before empty. Your usable trip range must therefore include a reserve for detours, traffic, weather changes and a charger that is occupied or offline. The published maximum is best understood as a test endpoint; it is not a sensible arrival target for a family trip.
How much range does cold remove from an EV?
Evidence from controlled laboratory testing
A 2024 U.S. Department of Energy report summarizes Argonne National Laboratory dynamometer testing of three model-year 2019–2020 battery-electric vehicles. With the cabin held at 72°F, the vehicles averaged a 41% range decrease at 20°F compared with the 72°F reference. DOE identifies heating, ventilation and air-conditioning energy use as the primary factor, with cold-related reduction in usable battery energy also contributing.
That 41% is a laboratory average for three older vehicles under specified conditions, not a prediction for every current EV. DOE explicitly notes that battery thermal management and HVAC technology affect the outcome. It is best used to understand the mechanisms and the possible scale of loss, while the NAF tests show how named vehicles performed on real roads in particular weather. The 38% average shortfall in the 2026 El Prix is a separate road-test result; the two percentages should not be treated as interchangeable measurements.
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- Battery temperature: Cold cells deliver less usable energy and accept regenerative braking and charging differently until warmed.
- Cabin heating: Resistive heaters can draw substantial power; heat-pump systems may use less in some conditions, but the sources do not provide a universal saving percentage.
- Speed and route: High speeds, hills, wind, snow and stop-start traffic change consumption independently of air temperature.
- Configuration: Wheel size, tires, drivetrain, software version, passenger load and cargo alter aerodynamic and rolling resistance.
- Battery condition: Age, state of charge and preconditioning history influence the energy available at the start.
These factors interact rather than acting as fixed deductions. For example, a cold morning followed by a long high-speed motorway section can produce a different result from a slow urban trip at the same air temperature. That is why a single percentage should not be copied from one vehicle to every winter journey.
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What the results mean for different buyers
If you need the longest possible leg between chargers
Start with absolute measured distance, not percentage retention. The Lucid Air’s 519-km result is the strongest severe-cold distance result in the cited data. It still fell well short of its 960-km WLTP figure, so a route planner should not treat the WLTP number as a winter motorway guarantee. Check the actual charging network on your route before assuming that a large battery eliminates all stops.
If you want predictable performance from a smaller battery
Look at deviation from WLTP. The Hyundai Inster and MG IM6 each recorded about 29% deviation in the 2026 test, the smallest reported losses in that severe-cold comparison. The Inster’s 256-km measured distance shows why retention and total range must be considered together: keeping a high percentage of a modest rating may still require more charging stops than a larger vehicle with a greater absolute range. The MG IM6 combined the same reported deviation with a longer measured distance of 352 km.
If your winters are cold but not arctic
The 2025 results may be more representative of temperatures around freezing than the 2026 severe-cold figures. Polestar 3, BYD Tang and Mini Countryman all stayed within roughly 4% to 10% of WLTP in that test. Do not assume those percentages will hold during a prolonged -20°C or -30°C event. Conversely, the severe-cold 2026 average should not automatically be applied to every trip at just below freezing.
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- Identify the correct official rating. Use WLTP for the Norwegian test results and EPA range for a North American vehicle. Match the exact battery, drivetrain, wheel and tire configuration.
- Choose a conservative temperature case. Treat the 2026 average 38% shortfall as evidence of severe-cold variability, not as a fixed multiplier. For ordinary cold, consult independent tests conducted near your expected temperature.
- Subtract a safety reserve. Plan to arrive with a buffer rather than targeting the depletion-test endpoint. A 20% state-of-charge arrival target is a practical starting point, then increase it for remote routes, storms or unreliable charging.
- Map chargers before departure. Confirm operating status, connector compatibility, opening hours and a backup site. A car that technically has enough energy may still need an earlier stop if the next charger is uncertain.
- Precondition while plugged in. Warm the cabin and, where the vehicle supports it, the battery before leaving. This moves initial heating energy from the battery to the grid and can improve charging behavior.
- Recalculate during the drive. Use the car’s consumption and state-of-charge trend. Headwinds, snow, traffic and a colder-than-forecast route can invalidate a morning estimate.
Keep the reserve decision separate from the test result. A driver who normally stops at 20% state of charge cannot use the full 519 km depletion distance as a route-planning number. Treat it as an upper-bound observation under that event’s conditions, then apply your own reserve and charger spacing.
Cold-weather charging and battery preconditioning
The FIA’s summary of the 2026 El Prix says most of the 24 tested cars came close to their stated 10–80% charging times when drivers preconditioned the battery before charging. This is a charging observation, not evidence of extra driving range, and it is not a guarantee for every model or charger.
For a fast-charge stop, set the charger as the destination in the vehicle’s navigation system when that activates automatic battery preconditioning. If the car has a manual battery-warming control, start it early enough for the pack to reach its target temperature while still plugged in or while driving toward the charger. Expect slower charging if the battery is cold, the charger is sharing power, or the station is operating below its rated output.
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Preconditioning also helps avoid arriving at a charger with a battery that is too cold to accept its advertised peak power. It does not change the vehicle’s official range rating and cannot recover energy already spent overcoming cold, wind or snow. Its main benefit in the cited test was bringing charging performance closer to the stated 10–80% time.
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- Keep the temperature band visible. “Winter” at +5°C is not equivalent to winter at -30°C.
- Separate distance from retention. Report both the kilometers traveled and the percentage below the official rating.
- Name the test cycle and market. WLTP results from Norwegian-market cars do not automatically transfer to EPA-rated North American versions.
- Check the stopping rule. Maintaining the speed limit, reaching a reserve threshold and driving until immobilized are different endpoints.
- Use the same vehicle configuration. Battery size, motor layout, tires and wheels can materially change consumption.
- Distinguish road tests from laboratory tests. The DOE 41% figure explains cold-weather mechanisms under controlled conditions; it is not a current all-model ranking.
- Record the year. The 2025 and 2026 El Prix events used different weather ranges and stopping procedures, so a result should always carry its test year.
- Check whether the result is a mean or an individual car. The 38% figure is the 2026 average; Lucid’s 46% and the 29% figures for the Inster and IM6 are model-specific results.
Limitations you should keep in mind
The El Prix tests cover vehicles sold in Norway. They do not establish a current model-by-model cold-weather ranking for North American EPA-rated cars. Weather, speed, route, heating use, load, tires, vehicle configuration and battery condition all vary between drivers, and the cited sources do not quantify each factor for every named model.
Test vehicles are driven under a defined route and stopping rule, while ordinary drivers may carry passengers, use winter tires, encounter queues or choose to stop with substantial charge remaining. Those differences make a test result valuable for relative comparison, but not a promise of an individual trip distance.
The most defensible conclusion is therefore conditional: choose the Lucid Air if your definition of “best” is the longest measured distance in the severe 2026 test; choose the Hyundai Inster or MG IM6 if your priority is the smallest reported percentage loss against WLTP; and use the Polestar 3’s 2025 result only as a mild-winter comparison, not as proof of performance in the 2026 Arctic conditions.
Frequently Asked Questions
Which EV went farthest in the coldest test?
The Lucid Air covered 519 km (about 322 miles) in Norway’s 2026 El Prix, which reached -32°C. That was the longest measured distance in that severe-cold event.
Which EV retained the most of its official range in 2026?
The Hyundai Inster and MG IM6 had the smallest reported WLTP deviation, about 29% each. Their measured distances were 256 km and 352 km, so best percentage retention did not mean the farthest trip.
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Was the Polestar 3 better than the Lucid Air?
The Polestar 3 traveled 537 km in the 2025 El Prix and was 4.1% below WLTP, but that test ran from -6°C to +8°C. The Lucid’s 519 km came in the much harsher 2026 event, so the figures are not a same-condition head-to-head.
How much range can an EV lose in cold weather?
The 2026 El Prix reported a 38% average shortfall versus WLTP. Separately, DOE’s summary of Argonne laboratory testing found a 41% average decrease at 20°F versus 72°F for three 2019–2020 BEVs. Neither percentage is a universal rule for every current EV or trip.
Does battery preconditioning increase winter range?
Its clearest benefit in the 2026 test was charging performance. FIA reported that most tested cars came close to their stated 10–80% charging times when drivers preconditioned the battery. Preconditioning is not evidence of additional driving range.
Can I apply these WLTP results to a U.S. EV?
Use caution. The El Prix vehicles were sold in Norway and compared with WLTP ratings, while U.S. vehicles use EPA range ratings. Confirm the local model, battery, drivetrain, wheels and tires before estimating a trip.
Should I plan to drive until the battery is empty?
No. The El Prix is a depletion comparison, and NAF notes that drivers typically charge before empty. Plan a reserve, with a larger buffer for remote routes, storms, traffic or uncertain chargers.
Why do winter tests from different years disagree?
Temperature and procedure matter. The 2026 route reached -32°C and averaged a 38% WLTP shortfall; the 2025 route ranged from -6°C to +8°C and averaged 19.4%. NAF also changed the stopping criterion, ending the 2025 run when a car could no longer maintain the local speed limit.
The Bottom Line
Bottom line: In the severe-cold 2026 El Prix, the Lucid Air went farthest at 519 km, while the Hyundai Inster and MG IM6 had the smallest reported WLTP loss at about 29%. The Polestar 3’s 537-km 2025 result came in much milder weather and should not be ranked directly against the Lucid. For winter planning, use the result that matches your priority—absolute distance or percentage retention—then apply a safety reserve and confirm charging conditions.
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