To complicate matters, some of those items are time or distance items. Oil and battery, for instance, need to be changed after a certain amount of time regardl

To complicate matters, some of those items are time or distance items. Oil and battery, for instance, need to be changed after a certain amount of time regardless of the miles driven. Not too hard to work into the pricing algorithm, though. If you wanted go get even more creative, you could get users to crowdsource scheduled maintenance tables for their vehicles. It's all in the owner's manual and just a matter of transcribing it.