EDIT EV open source project is a skateboard chassis design for electric vehicles, in line with the European L7E standard (heavy-duty four-wheeled motor vehicles, dry weight of passengers <400kg, dry weight of loads <550kg, if the electric vehicle does not include battery weight, the maximum net power <15kw ) and China's M1 standard (passenger cars with at least 4 or 3 wheels, the maximum total mass determined by the factory does not exceed 1 ton, and no more than 8 passenger seats except the driver's seat).