Check AAA vehicle operational cost statistics for what you drive. They have been providing actual /mile cost breakdowns for different makes and models for many years.
Finance hacker excludes cost of insurance, registration, and inspection fees, which are most certainly required to operate a vehicle and part of vehicle overhead expense. If you owned a business that operated multiple vehicles you would not ignore them or list them as misc. expenses.
BTW, I used a van or pick up as an example vehicle in my earlier post. In any case, if a client was offering you $2.00/photo for 10 photos and you drove 10 miles each way to shoot them, after deducting vehicle and equipment costs, how much was left after expenses to cover labor and profit after performing the shoot?
That was the point being made, you ended up paying out of pocket to give the client pictures.