It seems that the AAA team in Canada has conducted a rather stringent test of the cold-weather range performance of electric vehicles. The NRCan’s method of data release appears to be somewhat inflexible, offering only a single figure rather than distinguishing between cold and warm weather ranges, which casts doubt on its reliability. The cold-weather range performance of popular models like the Ford F-150 Lightning and Tesla Model 3, with a drop of 30-40%, is indeed eye-opening, casting new light on their exaggerated claims.
Read from: https://www.topspeed.com/ev-winter-range-charging-study/