how do we workout mileage charges for various types of cars?

Answer 1

I would take the stated gas tank size and the stated gas milage of the vechicle and comput it from the . i.e. 10 gal tank x 22 mpg=220 miles.
Now do your own homework!! LOL

Answer 2

1. Fuel Consumption (if in the equation)
2. tire wear
3. brake wear
4. engine wear
5. insurance costs

Its about $0.50/mile to drive my 1995 Tahoe when you add, oil changes, gas, tires, brakes, inspections, washings, cleaning, etc etc

its not cheap if you look at every penny...