Eat, drive, burn fuel, tires, wear out the car, maintain what amounts to company transportation on your own dime, etc.

The only drivers that had it figured out at my Papa Johns' were the 3-4 "old" dudes (my age now) who had shitheap beaters they bought for a thousand bucks or less and would put zero maintenance into. They'd buy an old honda, suzuki, toyota, etc, and just do the bare minimum to keep them on the road until something broke badly enough to keep them off the road, then they'd scrap it and buy another shitheap. They were all salesmen at their day jobs and did delivery in the evenings in their beaters. Us young idiots had our cherished used cars we loved, modified, and drove delivery with. We were fools.