When I was in college, I wanted to buy an inexpensive car so I could drive to a job or shop in another town. I found a used car dealership that offered cheap transportation cars for college students. As it turned out, the dealer said he sold the last $400 car on the lot two hours before I arrived, but for a little bit more, he could help me finance a better car.
He pointed me in the direction of a horrible green sedan in the back of the lot. This was at a time when diesel cars were rare in the United States, so the only place to buy fuel was at truck stops out of town. He asked me if I knew anything about diesel engines, and I said no. He explained that the car had a glow plug that ignited the diesel fuel, almost like a cigarette lighter heating the end of a cigarette. I almost bought the car, but didn't like the idea of looking everywhere for diesel fuel. In retrospect, I'm glad I didn't buy that car. Now I would consider buying a diesel car, simply because most gas stations sell diesel fuel.