The minuscule two-seater engineered by Mercedes-Benz, beloved by people who want to show the world that they are saving the world, is so tall and so heavily stuffed with safety and luxury equipment that it only gets 33 / 41 miles per gallon, not much better than cheaper cars that actually have backseats and trunk space, like the Honda Fit and Toyota Yaris.
The Smart Car is kind of like what you'd expect if Hitler had won the war and then ordered the Panzer factories to switch to making golf carts.