Values are preliminary data for comparison purposes and may not reflect real life driving results which depend on a number of factors including the starting charge of the battery, accessories fitted (post registration), variations in weather, driving styles and vehicle load. They were obtained after the battery had been fully charged. The BMW i4 is a battery electric vehicle requiring mains electricity for charging. The electric range was determined according to the WLTP test cycle. Only compare fuel consumption, CO₂ and electric range figures with other cars tested to the same technical procedure.