ULEV vehicles are usually electric or hybrid gasoline/electric vehicles. ULEV standards are the strictest emission standards in the USA.

Understeer occurs when the front wheels provide less steering than desired in a given direction. Usually the front wheels have lost adhesion and cannot steer effectively. This results in the vehicle pushing ahead and responding sluggishly to the steering wheel. Reducing speed can allow the front wheels to regain traction. Most vehicles are designed to exhibit understeer in normal conditions, because it is easier to control than oversteer. An understeering car is sometimes said to push, because it resists turning and tends to go straight.

A type of body construction that doesn't require a separate frame to provide structural strength or support for the vehicle's mechanical components. Also called 'unitized'.

An organization founded by Chrysler, Ford, and General Motors to strengthen the technology base of the domestic automotive industry through research and co-operation.

A type of body construction that doesn't require a separate frame to provide structural strength or support for the car's mechanical components. A unitized body can employ monocoque construction, or it can utilize strong structural elements as an integral part of its construction. Also called 'unibody'.

A joint that transmits rotary motion between two shafts that aren't in a straight line. Depending on its design, a universal joint can accommodate a large angular variation between its inputs and outputs. The simplest kind of universal joint, called a 'Hooke joint,' causes the output shaft to speed up and slow down twice for every revolution of the input shaft. This speed fluctuation increases with the angular difference between the shafts.

Vehicle that has been previously owned or driven.