My 2010 320d is currently costing around £0.14p/mile.
Circa 800 miles to a tank- and refilled at the pump in 5 or 6 minutes
Negligible depreciation, other than wear and tear on running gear (ball joints, tyres etc- which even EV's will need)
I would be interested how that compares against running an EV with the expected increase in Electricity costs