Minimum wage is calculated hourly, and as such it doesn't matter how many hours a day or how many days a year you work.

The vast majority of minimum wage workers DO NOT work anything close to every day of the year, and it's very weird that you'd expect that of people.

Presumably you would have less wear and tear on the car by driving it less. This entirely accepts the initial purchase of the car as a sunk cost, so the number of hours doesn't really factor in, the rest of the costs are all hourly, unlikely the car purchase which is a one time cost.