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U
Ultra-Low Emission Vehicle Standard (ULEV) - An emissions standard within the LEV program, tighter than the LEV standard.
Under Seat Storage - A storage console located under a vehicles seat.
Underbody - The area of a vehicle that is typically not visible from above and that is exposed to the road.
Underhood Label ID - A label required by the EPA that is affixed to the underside of a new vehicles hood to designate its engine family and EPA vehicle test group.
Underslung - An automobile whose frame passed underneath the axles. Used primarily by the American Motor Company of Indianapolis from 1907 to 1914.
Undersquare - An engine with the stroke longer than the bore, a design conducive to low-end torque, but usually not to horsepower. Undersquare motors were much more common in the prewar period than they are today.
Understeer - A handling characteristic of a vehicle that causes it to turn less sharply than the driver intends because the front wheels are sliding to the outside of the turn.
Underwriter - A company that engages in insurance underwriting.
Underwriting - The process of evaluating the risk exposure to a potential insured (or class or category of insureds), whether to accept the risk and offer insurance coverage, and the premium to be charged for that coverage.
Unibody - ′Uni′ stands for ′unitized′ and refers to a body and frame that are manufactured as one component.
Unibody Construction - Refers to a body and frame that are manufactured as one component.
Universal Joints (U-Joint) - Flexible joints used on drive shafts that are composed of two U-shaped yokes that share a common cross-shaped member.
Universal Remote Control - A wireless device that can be programmed to control all aspects of a vehicles entertainment system.
Universal Remote Transmitter - An electronic device integrated into a key or key fob that controls a vehicles remote-operated accessories.
Upholstery - Cloth, leather or synthetic material used to cover a vehicles seats, door panels, arm rests and headrests.
Upside-Down - The status of a vehicle loan when the loan amount is greater than the current value of the vehicle.
Up-Sized Wheels - Wheel and tire packages that are larger in diameter than those included in a vehicles standard equipment. Plus sizing allows the vehicle owner to achieve enhanced performance while also improving the appearance of the vehicle. The Plus concept was developed by these very owners who wanted to be able to put bigger, wider wheels and tires on their automobiles without sacrificing speed, performance and your speedometer accuracy. Also known as "plus sized wheels."
Here is a list of various Automotive Definitions. These are not specific to just Classic Cars, but covers all Automotive Definitions in general. This is not an all inclusive list and as we come across more, we will add them here. Drop us a note if you see something we missed.
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