A man is graphing Tesla battery degradation over time. US plug-in vehicles are expected to hit 300,000 this month. Hyundai and South Korea are turning Gwangju into a fuel cell tech hub.

Tesla quotes an official energy consumption figure of 4.7miles/kWh for the single motor version, which compares favourably against the BMW i4 eDrive35 (3.9miles/kWh) and Polestar 2 Long range ...