Landaulet n. : A small landau.

Example:
Why is the Maybach Landaulet 1 million dollars more than a regular Maybach?

Taxonomy
landaulet, free encyclopedia, Mercedes-Benz 300d, landau, celebrities, dignitaries, search, landaulette, convertible top, back seat, front seat, seats, rear, two-part, horse-drawn carriages, Gallery, vehicle, mass market.

Defination from the web:
landaulet was originally used to describe a coupé version of a landau-style carriage, without the front seats that a landau would have had. ... Since a landaulet was always intended to be a chauffeured vehicle, the style was never popular in the mass market. ...