The US FDA’s proposed rule on laboratory-developed tests: Impacts on clinical laboratory testing

1908 Studebaker limousine with an open driver's compartment

1953 Rolls-Royce Phantom IV (coachwork by Hooper)

A limousine (/ˈlɪməziːn/ or /lɪməˈziːn/), or limo (/ˈlɪmoʊ/) for short,^[1] is a large, chauffeur-driven luxury vehicle with a partition between the driver compartment and the passenger compartment which can be operated mechanically by hand or by a button electronically.^[2] A luxury sedan with a very long wheelbase and driven by a professional driver is called a stretch limousine.^[3]

In some countries, such as the United States, Germany, Canada, and Australia, a limousine service may be any pre-booked hire car with a driver, usually, but only sometimes a luxury car. In particular, airport shuttle services are often called "limousine services", though they often use minivans or light commercial vehicles.^[2]

The word limousine is derived from the name of the French region Limousin; however, how the area's name was transferred to the car is uncertain.

One possibility involves a particular type of carriage hood or roof that physically resembled the raised hood of the cloak worn by the shepherds there.^[4][5]

An alternate etymology speculates that some early chauffeurs wore a Limousin-style cloak in the open driver's compartment for protection from the weather.^[6] The name was then extended to this particular type of car with a permanent top projecting over the chauffeur.^[4] This former type of automobile had an enclosed passenger compartment seating three to five persons, with only a roof projecting forward over the open driver's area in the front.^[7]

Wealthy owners of expensive carriages and their passengers were accustomed to their private compartments leaving their coachman or driver outside in all weathers. When automobiles arrived, the same people required a similar arrangement for their chauffeurs. As such, the 1916 definition of limousine by the US Society of Automobile Engineers is "a closed car seating three to five inside, with driver's seat outside".^[8]

In Great Britain, the limousine de-ville was a version of the limousine town car where the driver's compartment was outside and had no weather protection.^[9]: 103 The limousine-landaulet variant (also sold in the United States) had a removable or folding roof section over the rear passenger seat.^[9]: 100

In the United States, sub-categories of limousines in 1916 were the berline, defined as "a limousine having the driver's seat entirely enclosed", and the brougham, described as "a limousine with no roof over the driver's seat."^[8]

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  Diagram showing an exposed driver's seat
• 
  1915 Winton Six Limousine; note the open driver's compartment
• 
  1941 Lincoln Custom limousine interior showing the occasional seats
• 
  US-Army, Chevrolet Fleetline, stretch limousine, 15-Passenger (1943)

The president of the United States has ridden in a variety of brands of state cars starting from 1899 when President William McKinley first to ride in a car, a steam Locomobile.^[10][11][12]

U.S. limousine business declined in the 21st century due to the effects of the Great Recession, the subsequent rise of ride sharing apps, and an industry crisis precipitated by deadly stretch limousine crashes in 2015 and Schoharie, New York, in 2018. Moreover, during this time, people who would have once utilized limousines began opting to travel more discreetly in cars like black SUVs.^[13]

The limousine body style usually has a partition separating the driver from the rear passenger compartment.^[6][9] This partition usually includes an openable glass section so passengers may see the road. Communication with the driver is possible either by opening the partition window or using an intercom system.

Limousines are often long-wheelbase vehicles to provide extra legroom in the passenger compartment. There will usually be occasional seats (in the U.S. called jump seats) at the front of the compartment (either forward-facing, rear-facing, or able to face either direction).

Many nations have official state cars designed to transport government officials. The top leaders have dedicated and specially equipped limousines. The United States Presidential State Car is the official car of the President of the United States.

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  The official state car of the Monarch of the United Kingdom
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  Passenger compartment of the late Queen Elizabeth II's car with occasional seats folded down
• 
  Cadillac One limousine of the President of the United States

Stretch limousines are longer than regular limousines, usually to accommodate more passengers. Stretch limousines may have seating along the sides of the cabin.

A "stretch limousine" was created in Fort Smith, Arkansas, around 1928 by the Armbruster coach company. Their vehicles were primarily used to transport famous "big band" leaders, such as Glenn Miller and Benny Goodman, and their members and equipment. These early stretch limousines were often called "big band buses". Armbruster called their lengthened cars "extended-wheelbase multi-door auto-coaches". Their 12-passenger coaches were used by hotels, taxis, airlines, corporations, and tour companies.^[14] Knock-down programs by automakers made coachbuilders stretch vehicles, but Armbruster also custom built limousines using unibody construction such as the 1969 AMC Ambassadors.^[15]

As of 2023, stretch limousines comprise one percent of U.S. limousine company offerings. That total was down from about ten percent in 2013.^[13]

A variety of vehicles have been converted into novelty limousines.^[16] They are used for weddings, parties, and other social occasions.^[17] Another style of novelty limousine are those painted in bright colors, such as purple or pink.^[18]

Vehicles converted into novelty stretch limousines include the East German Trabant, Volkswagen Beetle, Fiat Panda, and Citroën 2CV. There are instances of Corvettes, Ferraris, and Mini Coopers being stretched to accommodate up to 10 passengers.

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  Volkswagen Beetle limousine
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  Lada limousine in Cuba
• 
  Trabant limousine

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  Lincoln Navigator stretch limousine
• 
  The division in a London cab, black occasional seats folded up to bulkhead
• 
  Division in a 1993 Bentley Turbo R

• Car classification
• Party bus

• The dictionary definition of limousine at Wiktionary
• Media related to Limousines at Wikimedia Commons