1, It doesn’t get that great of mileage for it’s size,
2, you have to use premium gasoline in the engine (where’s the economy in that when it’s 50 cents more a gallon),
3, they are ugly as a mud fence,
4, resale sucks,
5, if you’re in an accident in one, you are never more than 2 feet from the POI.
Also, it restricts your diet to only certain types of food. If the driver or the passenger farts, the car will flip over, killing them both.