Examples. Butterfly doors were first seen in the Alfa Romeo 33 Stradale of 1969. These doors were commonly used in Group C and IMSA GTP prototypes, as they preserved the aerodynamic shape of the canopy while allowing the driver to enter and exit the car more quickly than conventional and gullwing doors.
What car has doors that go up?
Technically called “falcon wing” doors in Tesla’s official specs and marketing, the Model X’s rear doors are in fact gullwing doors by every definition of the term. While the Model X is no supercar, it packs an electric performance punch that allows it to keep up with many dedicated sports or supercars.