I have only had the car for 6 days but just got 39.8 miles off a full charge. I was in EL mode and used regen breaking where possible and didn't have the heater on (I wasn't cold). About 3/4 of the journey was on the motorway and I had cruise control set to 66mph. The engine came on and put the car into Comfort mode when the battery died. I am just topping up at a free Pod Point charger now.