Question: What transportation with gull-wing doors was used in the Back to the Future franchise?

full_context: Document 1: Burton (car): The Burton is a Dutch sports car based on French 2CV technology. The Burton is an open, nostalgic-looking sports car built on the chassis of the 2CV with a modern glassfibre bodykit. The car can be built as an open two seater, or with a hardtop with gull-wing doors or with a custom made convertible roof. From the beginning of 2002 the Burton is available all over Europe.
Document 2: DeLorean Motor Company: The DeLorean Motor Company (DMC) is an American automobile manufacturer originally formed by automobile industry executive John DeLorean in 1975. It is remembered for the one model it produced — the distinctive stainless steel DeLorean DMC-12 sports car featuring gull-wing doors—and for its brief and turbulent history, ending in receivership and bankruptcy in 1982. Near the end, in a desperate attempt to raise the funds his company needed to survive, John DeLorean was filmed appearing to accept money to take part in drug trafficking, but was subsequently acquitted of charges brought against him on the basis of entrapment.
Document 3: Scarab STM: The Scarab STM (Sport Transport Module) was a 3-wheeled car designed and manufactured, in the United States of America, around 1975. The car was manufactured by Fiberfab, a company founded by Warren "Bud" Goodwin. The vehicle was a reverse trike design utilizing VW Beetle front suspension married to a rear motorcycle running gear. The scarab is considered the most rare of the Fiberfab line, with unconfirmed reports that only 6 were ever produced.
Document 4: Chitty Chitty Bang Bang (car): Chitty Chitty Bang Bang is the vintage racing car which features in the book, musical film and stage production of the same name. Writer Ian Fleming took his inspiration for the car from a series of aero-engined racing cars built by Count Louis Zborowski in the early 1920s, christened "Chitty Bang Bang". The original Chitty Bang Bang's motor was from a Zeppelin dirigible and it was so named due to the sound made when the car was started. Six versions of the car were built for the film and a number of replicas have subsequently been produced. The version built for the stage production holds the record for the most expensive stage prop ever used.
Document 5: Lowell Park (novel): Set in 1990, Jenny Brix lives in Iowa City. She is a history buff. She even has a Ronald Reagan picture when he was in his 20s as a lifeguard! When she goes to a meeting, a very old professor has a heart attack. Panicking, she uses CPR on him, thus saving his life. After a few stops to the hospital, he asks her which US president she likes best. She answers Ronald Reagan. So then the professor tells her that she can go back in time and meet him. She is shocked, but the professor keeps telling her it's true. She finally believes him, sort of. The professor takes her to Dixon, Illinois, Reagan's childhood home. There the professor tells her she has 80 hours to stay out of the timezone, or her body will be used to the other timezones and can't come back to present day (1990). When she goes into the time machine, it actually is set on 1832, instead of 1932 (where she was going). She then meets Abraham Lincoln (who develops a little crush on her), and Chief Black Hawk during the Black Hawk War. After all of that is straightened out, she goes to 1932 with less than half the time left she started with. Once she gets there she sees a young, handsome Ronald Reagan going past her to save a person from drowning. She then gets some friends, Scooter and Betsy. They say there is a dance at Dixon's run down, old high school. There she dances with Ronald and his brother. While dancing with Ronald, she falls down the steps with him. They then get a crush on each other. After going on a few dates, she has to go to her original timezone. She and Ronald have a sad exchange (Ronald doesn't know about the time traveling) when she has to leave. Jenny then takes Scooter and Betsy to Lowell Park, where she shows them the time machine. She then leaves, leaving the others dumbfounded. When she comes back, professor says he is Scooter, and spent the rest of his life finding things about the time machine after she left until he finally made the time machine.
Document 6: Back to the Future: Back to the Future is a 1985 American science-fiction adventure comedy film directed by Robert Zemeckis and written by Zemeckis and Bob Gale. It stars Michael J. Fox as teenager Marty McFly, who is sent back in time to 1955, where he meets his future parents in high school and accidentally becomes his mother's romantic interest. Christopher Lloyd portrays the eccentric scientist Dr. Emmett "Doc" Brown, Marty's friend who helps him repair the damage to history by helping Marty cause his parents to fall in love. Marty and Doc must also find a way to return Marty to 1985.
Document 7: Back to the Future: The Game: Back to the Future: The Game is an episodic graphic adventure based on the "Back to the Future" film franchise. The game was developed and published by Telltale Games as part of a licensing deal with Universal Pictures. Bob Gale, co-creator, co-writer and co-producer of the film trilogy, assisted Telltale in writing the game's story. Original actors Michael J. Fox and Christopher Lloyd allowed the developers to use their likenesses in the game for the lead characters Marty McFly and Doc Brown, respectively. Lloyd also provides the voice for Doc, while A.J. Locascio plays the role of Marty; Fox later appeared to voice two cameo roles in the final episode, reprising his role as future versions of Marty McFly in addition to playing his forefather William.
Document 8: DeLorean DMC-12: The DeLorean DMC-12 (commonly referred to simply as "the DeLorean," as it was the only model ever produced by the company) is a sports car manufactured by John DeLorean's DeLorean Motor Company for the American market from 1981–83. The car features gull-wing doors and an innovative fiberglass body structure with a steel backbone chassis, along with external brushed stainless steel body panels. It became widely known and iconic for its appearance, and a modified DMC-12 was immortalized as the DeLorean time machine in the "Back to the Future" media franchise.
Document 9: Back to the Future (franchise): The "Back to the Future" franchise is an American science fiction–comedy film series written and directed by Robert Zemeckis, produced by Bob Gale and Neil Canton for Steven Spielberg's Amblin Entertainment, and distributed by Universal Pictures. The franchise follows the adventures of a high school student, Marty McFly (Michael J. Fox), and an eccentric scientist, Dr. Emmett L. Brown (Christopher Lloyd), as they use a DeLorean time machine to time travel to different periods in the history of Hill Valley, California.
Document 10: McLaren MP4/1: The McLaren MP4/1 (initially known as the MP4) was a Formula One racing car produced by the McLaren team. It was used during the 1981, 1982 and 1983 seasons. It was the first Formula One car to use a carbon fibre composite monocoque, a concept which is now ubiquitous.
Document 11: DeLorean time machine: The DeLorean time machine is a fictional automobile-based time travel device featured in the "Back to the Future" franchise. In the feature film series, Dr. Emmett Brown builds a time machine based on a DeLorean DMC-12 car, to gain insights into history and the future. Instead, he ends up using it to travel over 130 years of Hill Valley history (from 1885 to 2015) with Marty McFly to change the past for the better and to undo the negative effects of time travel. One of the cars used in filming is on display at Universal Studios Hollywood.
Document 12: The Time Machine (2002 film): The Time Machine is a 2002 American science fiction film loosely adapted from the 1895 novel of the same name by H. G. Wells and the screenplay of the 1960 film of the same name by David Duncan. Arnold Leibovit served as executive producer and Simon Wells served as director, the great-grandson of the original author. The film stars Guy Pearce, Jeremy Irons, Orlando Jones, Samantha Mumba, Mark Addy, Sienna Guillory and Phyllida Law, and includes a cameo by Alan Young, who also appeared in the 1960 film adaptation. The film is set in New York City instead of London, and contains new story elements not present in the original novel, including a romantic backstory, a new scenario about how civilization was destroyed, and several new characters, such as an artificially intelligent hologram played by Orlando Jones, and a Morlock leader played by Jeremy Irons. It was nominated for the Academy Award for Best Makeup (John M. Elliot, Jr. and Barbara Lorenz) at the 75th Academy Awards, but lost to "Frida".
Document 13: Time Traveler (video game): Time Traveler or Hologram Time Traveler is a stereographic laserdisc FMV arcade game released in 1991 by Sega and designed by "Dragon's Lair" creator Rick Dyer. It is called the "World's First Holographic Video Game" because it uses a special arcade cabinet that projects the game's characters. The "holographic" effect is an optical illusion using a large curved mirror (invented by Dentsu) and a CRT television set.
Document 14: The Timekeeper: The Timekeeper (also known as From Time to Time and Un Voyage à Travers le Temps) was a 1992 Circle-Vision 360° film that was presented at three Disney parks around the world. It was the first Circle-Vision show that was arranged and filmed with an actual plot and not just visions of landscapes, and the first to utilize Audio-Animatronics. The film featured a cast of European film actors of France, Italy, Belgium, Russia, and England. The film was shown in highly stylized circular theaters, and featured historic and futuristic details both on the interior and exterior.
Document 15: Back to the Future Part II: Back to the Future Part II is a 1989 American science-fiction adventure comedy film directed by Robert Zemeckis and written by Bob Gale. It is the sequel to the 1985 film "Back to the Future" and the second installment in the "Back to the Future" trilogy. The film stars Michael J. Fox, Christopher Lloyd, Thomas F. Wilson, and Lea Thompson and continues immediately following the original film. After repairing the damage to history done by his previous time travel adventures, Marty McFly (Fox) and his friend Dr. Emmett "Doc" Brown (Lloyd) travel to 2015 to prevent McFly's future son from ending up imprisoned. However, their presence allows Biff Tannen (Wilson) to steal Doc's DeLorean time machine and travel to 1955, where he alters history by making his younger self wealthy.
ground_truth: DeLorean DMC-12