The reason I’m looking at cars based on economy is because all other outgoing costs are pretty much low and not worth thinking about.
Taking my current Fiesta as an example and using your calculations:
- 65mpg average (0.08p per mile, so £1440 a year in fuel based on 18k year @ £1.31/L)
- Tax £95
- Tyres £40 each (£160 every 2 years at current rate of wear)
- Servicing £40-50 (I get cheap parts, family member is a mechanic)
- MOT - £50 (all in)
- Insurance £280 fully comp (this includes my wife as a driver, 6 years no claims)
Over the last 5 years of owning my current car, the only major pay-out has been a replacement steering rack. Purchased when it had done 64k, now on 130k, I’m not going to complain. All MOTs have been free from issues too