Hi RichardW
I went for blue that comes as standard, I have had the car for four weeks now and have not yet used the engine, but all my runs have been local. I have done a 30 mile return trip without the engine. I live in a hilly area, which have caused no problems. I suggest you read the online handbook before you get the car. Use the “B” position on the gearbox when driving downhill and when slowing down as this charges the battery.
John