Cars

When you think of cars you think of mechanics and brute power, not the functionality and flow of art that it provides the eye of the driver as well as the pedestrians.
Henry Ford, in the begginging, early days of the automobile intended that all cars be kept black, and more or less looking the same.
As you can see by today's variety and trends this didn't hold up very well. Cars today come in any color you choose, and they can look like anything you choose, given you have the right amount of money. Sports cars for example don't just look sleek, they are sleek. They combine form and function in a way that only fluid dynamic principles can explain. Things like streamlining and drag have shaped cars since they were first invented. It's gotten to the point that, if you really wanted to you can haveq a car be shaped as a hot dog if you really wanted it to.
Every single car on the road is cut and molded to please your eye. Cars in the 90's have a different style then cars today, what people like changes, only because the motor industry makes you associate good looking cars to new cars. So if you want a nice looking car it has to be new, so BAM! You buy a new car. Marketing and a hint of brainwashing in the simest form, how everyone does business these days.