It really depends on the company, job, and where you live. I worked as a contractor for a delivery company for a while, putting about 20,000 miles a year on my own car transporting stuff. In the US, if you drive your own car for work, you get a tax deduction for the mileage you put on your car while working. The pay was pretty good and the hours were short, but I was effectively converting the value of my car into cash during that time.