Yeah, I have factored in depreciation to some extent but intend to keep this car at least until the battery warranty expires in 8 years. I didn't let it sway my decision or calculations at point of purchase but it was definitely a plus for EVs.
There's definitely savings to be had above and beyond fuel, I agree. Servicing on the corsa e is 16000 miles or 2 years, whereas the fiesta was annually. That's at least £100 a year saved.
Tax / RFL is £0 as opposed to £13 per month. It seems like a tiny amount but its half the monthly energy costs to run out EV based on current mileage.
I don't really know long term consumable costs of an EV compared to an ICE but things like clutch and belts obviously won't need doing. I believe brakes last a lot longer too when using regenerative braking?
I'm also willing to pay the premium to have a car the doesn't put out emissions wherever it goes. My daughter starts school in September and I'll feel a lot less guilty driving the mile to school and parking outside. I know it's a drop in the ocean but every little difference adds up.