a four-wheeled carriage with a top, the back and front of the top can be raised and lowered independently of each other

a four-wheeled horse drawn carriage with a raised seat outside for the driver

a kind of pleasure carriage whose top may be thrown open or be closed at pleasure

from Landau in Germany, from the House of Hanover, a 4-seater of that name. Gentile considers it a coach term that is confusing when applied to car bodies. A car with a transformable roof that opened either over the front or the rear of the driver and passenger area. Cadillac used the term to describe any car with folding quarters over the rear seat, or even fixed rear quarters externally decorated with false landau bars. The more appropriate denomination is Landaulet or Landaulette. The landau coach of England's Queen Victoria is shown below

denotes a body style which may be almost anything but is most often a sedan or hardtop. A landau may be signified by the landau roof (see below) or the characteristic elongated "S" on the quarter panel behind the side windows. Photo

Enclosed carriage with divided top that can be thrown back or let down and raised seat for driver.

Originally a limousine with an open driver's compartment, front and back seats facing each other, and a two-part convertible roof (like a Brougham). In recent years US manufacturers used the term to describe a cloth-covered fixed top.

A landau is a coachbuilding term for a type of carriage; the term has also been carried over into the automobile field, where it is generally used to mean a simulated convertible.