(Edit: I forgot diesel cost lol oops. I'll use 1.50/litre as an average)
You've prompted me to calculate mine.
In 29 months and 16k miles I've averaged £1.12 per mile assuming the cars residual value is 0.
Otherwise, it's 0.94p per mile assuming today's autotrader price for the car.
This should lower over the next couple years. Most of not all of the stuff that will go wrong has done at this age and mileage.
Conveniently did 190 miles for work today. It looks like I see minimum profits or none at all on claiming expenses for 45p per mile 😂
(750ved, 2700 insurance, 3019 repairs, 2700 fuel, MOT about 120 and 3800 in depreciation... Total say £13,000).
Have I miscalculated? Or why is yours so much higher?