I've worked as a driver for the past six months now, and can say it's an awful job which I wouldn't recommend to anyone. The (God-awful) pay vs the cost of petrol alone makes the job pretty much unworthwhile. While there is a work car, they hired several drivers unable (or unwilling) to use their own cars, so I'd only get to use it when I was doing an open or close shift (wherein you're the only driver). Then someone crashed it, and we don't have it anymore.
I could go on and on about why you shouldn't work there. I know that I handed my application in one afternoon and was asked to work my first shift that night, which was the first sign that something was amiss. I am giving my two weeks notice tomorrow, and not a day too soon.
Go work elsewhere.