I wonder how the fuel saving is calculated? Is it a comparison with the cost of fuel for a petrol or diesel engined car? And is it based on your annual mileage?
Then it seems to get a bit confusing with all the other extras you can get.
I have a BMW 330e PHEV at the moment but its due for renewal in November. I'm not sure if my home charging point will be compatible with a Tesla. I'm more tempted to go for the new model 3 series hybrid rather than full electric.
I was just about to ask the same question about the fuel saving computation.