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“Highway speeds in 20° weather” doesn’t seem like a realistic road trip scenario. Seems a little bit like AAA is doing test based on what the oil industry wants. Let’s ask Norwegians how EVs do in the cold. What a farce this is.

Some electric cars can pre-heat when on the charger. If it's too cold you're still going to lose range one way or another. You could add more insulation but that's both weight and makes it harder to cool in the summer. Unless you do stuff like water cooling, which both adds weight and complexity.

“The Environmental Protection Agency has estimated a 10% to 30% drop in gas vehicle fuel economy in cold weather.” So EV range reduction is only slightly worse than gas cars.

Your framing this as an EV problem is misleading. This affects all vehicles, as you did eventually mention buried into the story: "The Environmental Protection Agency has estimated a 10% to 30% drop in gas vehicle fuel economy in cold weather, [...]"