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Dihedral Doors




Butterfly doors, also called '''vertical doors''' or '''dihedral doors''', are a type of Door often seen on high-performance Automobile s. They are similar to Scissor Doors , but while scissor doors merely tilt forward and up, butterfly doors also rotate as they move forward.

The McLaren F1 , Alfa Romeo Stradale , Saleen S7 , and the Mercedes-Benz SLR use butterfly doors. The Toyota Sera was a limited-release car designed exclusively for the Japan ese market which used this design. Due to its unusual design, some enthusiasts in Australia , New Zealand and England have privately imported the cars. It is only available in right-hand drive configuration.

Koenigsegg uses a "dihedral synchro-helix" system for their vehicles which seems combine the advantages of all the designs though with considerably more mechanical complexity.


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