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An enclosed single-compartment body with two doors and varying passenger capacity depending on seat arrangements. The SAE standard J1100 defines it as having less than 33 cubic feet (934 liters) of interior volume. Larger coupes have rear quarter windows. Coupes have fixed permanent back panels and top, as well as a luggage compartment in the rear deck. Originally it meant a vehicle which was "cut" (thus the French "coupé") by a glass partition behind the front seats so that the driver was exposed to the air while those in the back were enclosed.

sedan:

The term sedan originally described a conveyance seen only in movies today: a wheelless vehicle for one person, borne on poles by two men, one ahead and one behind. Automakers borrowed the word and applied it to cars with an enclosed four-door body type, permanent back panels, and top with full-width cross seats front and rear, and passenger capacity from five to seven depending on wheelbase. Longer-wheelbase models accept extra passengers in fold-down auxiliary seats. Sedans usually have quarter windows in the rear quarter in addition to windows in all four doors. Trunk racks often were standard offerings. Called saloon in U.K. According to Car and Driver, the term "sedan" refers to a fixed-roof car with at least four doors or any fixed-roof two-door car with at least 33 cubic feet (934 liters) of rear interior volume, according to measurements based on SAE standard J1100.

station wagon:

(SW) Originally this was a car with an enclosed wooden body of paneled design with several rows of folding or removable seats behind the driver. It became a different and popular vehicle after 1945. There is usually a tailgate but no separate luggage compartment. Early station wagons and compact station wagons had only two doors while the larger ones had four doors. The British term is "estate car."更多精彩文章及讨论，请光临枫下论坛 rolia.net