Aside from the humor (negligible) aspect of the car dealer, there is no such thing as a car dealer. Language creates is own reality, or un-reality if you will. There are human beings who work to sell cars and while it may be true that as they perform that act of attempting to sell someone a car, they lie, it is also very probable that when engaged in other verbal intercouse in their lives, they do not lie or they do not lie as much or knowingly. We tend to generalize and in generalizing we stereotype, generally!

And how about hypocracy? You gotta love it. It's oil to the machinery of social interactions. We couldn't live without it!