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Cold weather questions

Cold weather questions

I own a Chevy Volt, and though I live in Phoenix there are a couple of issues with operation in cold weather. Does anyone know about the Model 3:

1) How much will cold weather affect range? Of course, no one has any experience with the Model 3 yet, but based on Model S and X experience what is the estimate? With my Volt the range is reduced by about 20 - 25% in temperatures near freezing vs. 70 degrees.

2) Cabin heat -- is it resistive or is there a heat pump? In the Volt, heat is provided by resistive heating (or engine heating in the coldest climates), which is not very efficient and further reduces the range. Since there is an air conditioner in the Model 3, it doesn't seem too difficult to make it function as a heat pump in the winter.