1996 McLaren F1 with butterfly doors

Butterfly doors, also called vertical doors or dihedral doors, are a type of door often seen on high-performance automobiles. They are similar to scissor doors, but while scissor doors merely tilt forward and up, butterfly doors also rotate as they move forward. Download high resolution version (1819x1329, 220 KB) Wikipedia does not have an article with this exact name. ... Download high resolution version (1819x1329, 220 KB) Wikipedia does not have an article with this exact name. ... The front door of a house is often decorated to appear inviting. ... Karl Benzs Velo (vélo means bicycle in French) model (1894) - entered into the first automobile race 2005 MINI Cooper S. An automobile (also motor car or simply car) is a wheeled passenger vehicle that carries its own motor. ... Scissor doors, also called Jackknife doors, are automobile doors that rotate up and forward on a hinge near the front of the door. ...

The McLaren F1, Alfa Romeo 33 Stradale, Saleen S7, Enzo Ferrari, and the Mercedes-Benz SLR McLaren, among others, use butterfly doors. It was also a common feature for Group C and IMSA GTP/Camel Lights prototype racers as they incorporate teardrop top which allows the driver to get in and out of the car more quickly than conventional and gullwing doors, especially in a cramped pitlane environment such as the pre-1991 Le Mans circuit. Since then, butterfly doors have been an adopted design of closed top sportscar racers, such as the Toyota GT-One, Bentley Speed 8 and more recently, the Peugeot 908. The Toyota Sera, released in 1991, was a limited-release car designed exclusively for the Japanese market which used this design. Due to its unusual design, some enthusiasts in Australia, New Zealand and Great Britain have privately imported the Toyota Sera. The McLaren F1 was engineered and produced by McLaren Automotive, a subsidiary of the British McLaren Group that, among others, owns the McLaren Mercedes Formula One team. ... The Alfa Romeo 33 Stradale is an extremely rare road car built by Alfa Romeo of Italy. ... The Saleen S7 is a supercar that was jointly designed by RML and Saleen, Incorporated and is currently being built at Saleens headquarters factory in Irvine, California. ... The Enzo Ferrari is a 12-cylinder Ferrari supercar named after the companys founder, Enzo Ferrari. ... The Mercedes-Benz SLR McLaren is a sports car and supercar automobile co-developed by DaimlerChrysler and McLaren Automotive. ... Group C was a category of auto racing, and was introduced into sports car racing by the FIA (the governing body of World motor racing) during the early 1980s. ... This article or section does not adequately cite its references or sources. ... GTP sports cars racing at Mid-Ohio Sports Car Course in 1991 Sports car racing is a form of circuit racing, with purpose-built cars that nevertheless have enclosed wheel wells and often have closed cockpits. ... The Toyota GT-One, also known as the TS020, was raced in the 1998 and the 1999 Le Mans by Toyota in the GTP category (known as GT1 prior to 1999). ... The Bentley Speed 8 is a LMP class race car that competed in the Le Mans series from 2001-2003. ... Peugeot 908 Design Model The 908 is a race car built by the French automobile manufacturer Peugeot to compete in the 24 Hours of Le Mans endurance race starting in 2007. ... Toyota Sera. ... Toyota Sera. ...

Koenigsegg uses a "dihedral synchro-helix" system for their vehicles (known in the custom-car world as "raptor" doors) which seems to combine the advantages of all the designs though with considerably more mechanical complexity. Koenigsegg Logo Koenigsegg Automotive AB is a Swedish manufacturer of high-performance cars based initially in Olofström, later moving to Margretetorp, just outside Ängelholm. ...

See also

• Gull-wing door
• Scissor doors

A De Lorean DMC-12 with its doors open A Bricklin SV-1 with its doors open The term gull-wing door is used to describe automobile doors which are hinged at the roof. ... Scissor doors, also called Jackknife doors, are automobile doors that rotate up and forward on a hinge near the front of the door. ...

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