Originally Posted by
I-Like-To-Bike
Your $0.39/mi figure appears to be derived from dividing your total yearly car costs (both fixed and variable costs) by your total mileage driven, and it is not a figure that represents the rate for each additional mile driven, or conversely the amount that would have been saved for each mile not driven.
That figure wouldn't accurately represent the savings you would get by reducing your car mileage by 2000 miles a year,since your major fixed costs (depreciation, insurance, registration) would not be reduced at all. Outside of fuel costs and parking costs, if any, at work site you would not see much savings at all.
I'm up against deadline, which is why I am posting here (haha), but I could reduce the mileage to 7500/year rather than 15000/year and forward date all the maintenance, reduce the depreciation and get an average cost that way over 10 years and compare to my real costs to come up with an extra cost/mile.
I'd also wager than my car is getting close to it's overall lifespan and I'll be lucky to get 200k out of it. I'll need another clutch soon and most of the original mechatronics are wearing out (door locks, windows, etc...)
Used parts are cheap (£6 for a use Golf door lock and labour is cheap as we £60/h) but how many parts can be replaced before a new car is purchased.