I give you about 10 or so..
-Concept Car: Any car that has been through the design process that has not yet been slected for production. It may be for show only and never intended for production or it may be a revised edition of a current model.
-Convertible: A vehicle (Usually a car) which has a retractable roof. This may be in the form of cloth or a more rigid material (Such as Fiberglass). The roof is usually stored within the rear of the vehicle and most convertibles have HARDTOPS, which are fixed roofs which can be put on the car as a substitute for a normal roof.
-Cruise Control: A device that is usally a standard feature on modern cars the allows the driver to designate a certain spped at which the vehilce is to travel at. This speed can be changed with acceleration and allows the driver to take his (her) foot off of the accelerater when driving. *Note cruise control is mostly for long trips so that the driver does not have to keep on the gas the whole length of the trip.
-Displacement: The volume within an engine the the cylinders stroke displaces. Can be measured using fluid or gas. The larger cylinder size, the larger the displacement.
-Drag: The force that acts upon any vehicle in motion and consists of wind resistance that resists the car's motion. Ex. Trucks create larger amounts of drag due to their box-like shape and large size.
-Drag Coeffecient: The measure of drag a vehicle produces. Is measured using a wind tunnel.
I'll try to help you every once in a while and you should check with others to confirm my definitions.