i'm fairly new to hypermiling, and as such i'm still trying to figure out how to quantify the savings..
My current approach is to log:
additional mileage OVER the official figures
Saved running costs VS official figures
Total cost per mile (for the saab only) including purchase price and taxing/servicing
Cost per mile for fuel and servicing for the clio
I feel these give me an idea of the fiscal advantages..
I may also consider working out the miles i offset by providing a car share with my colleague.
I have not yet started modifying any of the vehicles
-when i do, i'll try to keep a cost log to allow others to figure out the cost of each mod
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