EV giant Tesla Inc (NASDAQ:TSLA) is attributing the lowered range estimate on some of its vehicles to several improvements, coupled with the Environmental Protection Agency’s (EPA) updated range testing guidance. What Happened: In an email to customers who ordered specific vehicles, Tesla explained the reduced range estimate as a result of “several comfort and functionality improvements.” According to Tesla, these changes will require more energy from the battery packs. Additionally, Tesla stated that the EPA has updated its range testing guidance to reflect real-world range more accurately, w…