Tesla has consistently exaggerated the driving range of its electric vehicles, reportedly leading car owners to think something was broken when actual driving range was much lower than advertised. When these owners scheduled service appointments to fix the problem, Tesla canceled the appointments because there was no way to improve the actual distance Tesla cars could drive between charges, according to an investigation by Reuters.
Battery heating makes an enormous difference. I live in Ontario and generally average about -15 to -20 during the winter. Bought a Hyundai Kona EV in 2020 and it’s been great. Actual range in summer is about 450km cuz I drive like an old man, and it drops to about 350km with my high traction winter tires, battery heating, and cabin heating.
The Kona also won for the best actual range during winter a few years ago
https://yourtestdriver.com/electric-vehicle-winter-weather-test/