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In China, It’s Already Cheaper to Buy EVs Than Gasoline Cars
(www.washingtonpost.com)
This is a most excellent place for technology news and articles.
It depends on a number of factors: outdoor temperature, the model of car, whether climate control is used. At temperatures of an average January daytime high where I live, using climate control, range can decrease by 40% and anecdotally my model is even higher.