Driving at a steady pace, rather than frequent, foot-down acceleration, will help you optimise your range. The Green mode offers you a consumption-reducing setting. It helps you get used to using the pedal to stay in an efficient range. If the efficiency meter strip glows green, you’re doing fine. If you speed up too powerfully, it’ll turn grey. It evaluates your efficiency since the start of your journey – and shows you how many bonus miles you’ve collected.