1) Fullsized- overbuilt, overpowered four-wheel-drive beheemouths with more luxury than a 4star hotel i.e. Esclades, Excursions, Navigators, Hummers
2) "Crossovers"- underbuilt, underpowered wuss-mobiles designed so that some people can feel good that they are not driving a tank when in fact, they are even worse because they still waste fuel and space, drive like idiots and should really be driving a van or car. Forgein companies from Asia and Europe often sell these too.
3) Suburbans- Still a full-sized SUV with luxury and four-wheel-drive, but actually designed to tow and work. idiots from catagory 1 still buy suburbans, but so do people who actually work the truck like a truck.
2. An nauseatingly irresponsible vehicle if you live in Miami and drive it solely because noone going to tell you that you can't.
Regardless, there is no reason that auto manufacturers shouldn't be required to increase the fuel efficiency of these beasts.
Never intended for passenger use on the highway, is cheaper to manufacture due to loophole in federal laws regulating passenger saftey. Despite the manufacturing economy, on of the most expensive types of motor vehicles to own and operate-high accident and theft rate, low re-sale value, and poor performance and fuel economy.
Prone to roll over and kill all occupants from something as simple as a failed tire. The lack of structure mandated for real passenger vehicles allows the 'SUV' to cave in upon rollover, while even the cheapest passenger car is legally required to have a roll cage in the roof structure.
Marketed as a more cool replacement for the minivan or station wagon. Often seen in news reports as the scene of multiple fatalities resulting from a blown tire. There is a new generation of vehicles marketed as suv or hybrid vehicles, these are not as dangerous, being based on minivan or car chassis-engineered for use on paved surfaces.