Question: What year was the first model of the sports car which Dave McLellan notably engineered?

full_context: Document 1: Dave McLellan: Dave McLellan (born in Munising, Michigan) was an automotive engineer for General Motors, most notably the chief engineer for the Corvette from 1975 until his retirement in 1992.
Document 2: David Hollister: David Hollister (born April 3, 1942) served as the mayor of Lansing, Michigan from 1993 to 2003, until he resigned to be the director of the Michigan Department of Labor and Economic Growth under Michigan Governor Jennifer Granholm's administration. During his tenure as mayor, he was instrumental in convincing General Motors Corporation to build the Grand River Assembly Plant downtown, and to build a new plant in the region to replace the Lansing Car Assembly Plant which dated back to 1903. Also under his tenure came the completion of Cooley Law School Stadium, the stadium for the Lansing Lugnuts, a Class A minor league baseball team. Mayor Hollister made central city (including downtown and Old Town) revitalization a top priority of his administration. Hollister was born In Kalamazoo and raised in Battle Creek, Michigan, where he graduated from Battle Creek Central High School. He earned bachelor's and master's degrees from Michigan State University. From 1967 to 1970 he was a social studies teacher at Lansing Eastern High School. Prior to becoming mayor, he served in the Michigan House of Representatives from 1973-1993 representing the City of Lansing. In 2005 he was recruited to run Prima Civitas, an economic development organization funded by Michigan State University and the city governments of Lansing and East Lansing, Michigan.
Document 3: Chevrolet: Chevrolet ( ), colloquially referred to as Chevy and formally the Chevrolet Division of General Motors Company, is an American automobile division of the American manufacturer General Motors (GM). Louis Chevrolet and ousted General Motors founder William C. Durant started the company on November 3, 1911 as the Chevrolet Motor Car Company. Durant used the Chevrolet Motor Car Company to acquire a controlling stake in General Motors with a reverse merger occurring on May 2, 1918 and propelled himself back to the GM presidency. After Durant's second ousting in 1919, Alfred Sloan, with his maxim "a car for every purse and purpose," would pick the Chevrolet brand to become the volume leader in the General Motors family, selling mainstream vehicles to compete with Henry Ford's Model T in 1919 and overtaking Ford as the best-selling car in the United States by 1929.
Document 4: John Beltz: John Beltz was Oldsmobile's chief engineer in 1964 and one of the prime movers of the Oldsmobile Toronado and 442 project. Beltz was promoted to Oldsmobile general manager at age 43 in 1969 when Harold N. Metzel retired. Beltz died in May 1972 from cancer at the age of 46. He was revered in the automotive industry as a visionary ahead of his time. Throughout his career, Beltz became known as much for his engineering brilliance as his charisma, his always clever sense of humor and impeccable taste in cars. According to legend, John Beltz and his staff led Oldsmobile through undoubtedly its best years and the Oldsmobiles from 1949 to 72 define Olds as the Rocket division of GM. It is said that during his time at the helm of Oldsmobile, Beltz represented Michigan and the auto industry in its purest form, when cars were king and the auto industry worker, both blue and white-collar, was the lifeblood of the state.
Document 5: McLaren Automotive: McLaren Automotive (often simply McLaren) is a British automaker founded by Bruce McLaren and is based at the McLaren Technology Campus in Woking, Surrey. It produces and manufactures sports and luxury cars, usually produced in-house at designated production facilities. In July 2017, McLaren Automotive became 100% owned by the wider McLaren Technology Group.
Document 6: Manta Mirage: The Manta Mirage was a mid-engined vehicle produced by Manta Cars, owned by brothers Brad and Tim LoVette, in Costa Mesa, California* from 1974 to 1986. The Mirage, originally referred to as just the 'Manta', or the 'Manta Can-Am', was a light-weight road-legal car, based loosely on the McLaren M8 Can-Am racing car. The Mirage's steel space frame chassis was fitted with a high-output V8 engine and 4-speed transaxle. Most Mirages were equipped with 327 cu. in. (5.4 L) or 350 cu. in. (5.7 L) Chevrolet small block V8 engines, though some used 454 cu. in. (7.4 L) or 460 cu. in. (7.5 L) V8 engines. The original Mirage design mated the Chevy V8 to a Corvair transaxle via a Kelmark adapter and remote shifter. The bodywork was all hand-laid fiberglass, pre-colored in a range of gel-coat colors. Gull-wing doors were fitted to a removable top section, while the doors flip forward for entry. With curb weights as light as 1,900 lbs (680 kg), the cars could be built by the factory or their owners to be extremely fast.
Document 7: General Motors Rotary Combustion Engine: The General Motors Rotary Combustion Engine (GMRCE) is an internal combustion Wankel engine which uses a rotary design to convert pressure into a rotating motion instead of using reciprocating pistons. In November 1970, GM paid $50 million for initial licenses to produce their version of the Wankel rotary engine, and GM President Ed Cole initially projected its release in three years. Chevrolet, with impetus from Pete Estes and John DeLorean, as well as Ed Cole worked on the Wankel. Bob Templin was the chief executive in charge of rotary-engine research at the GM Tech Center in Warren, Michigan, but Ed Cole would leave his office in Detroit twice a week for the trip to Warren, taking charge of the program. The engine was initially targeted for an October 1973 introduction as a 1974 Chevrolet Vega option.
Document 8: Wayne Cherry: Wayne K. Cherry (born 1937) is an American car designer educated at Art Center College of Design and employed by General Motors from 1962 through 2004, retiring as Vice President of Design. Cherry worked for General Motors in the United States from 1962 until 1965, when he moved to the United Kingdom to take a position with General Motors' Vauxhall Motors subsidiary, becoming Design Director at Vauxhall in 1975. In 1983 General Motors consolidated all European passenger car design under Cherry and made him Design Director at General Motors' Adam Opel AG subsidiary. Cherry returned to the United States in 1991 and in 1992 became General Motors Vice President of Design. Cherry retired from General Motors in 2004.
Document 9: Tom McMillin: Tom McMillin is a member of the Michigan State Board of Education, and a former member of the Michigan State House from 2009 through 2014, representing the 45th State House district centered in Rochester Hills, Michigan. He was previously mayor of Auburn Hills and a member of the Oakland County Commission. McMillin graduated from the University of Michigan in 1987 with a bachelor's degree in economics and accounting. He is a certified public accountant.
Document 10: Chevrolet Corvette: The Chevrolet Corvette, known colloquially as the Vette or Chevy Corvette, is a sports car manufactured by Chevrolet. The car has been produced through seven generations. The first model, a convertible, was introduced at the GM Motorama in 1953 as a concept show car. Myron Scott is credited for naming the car after the type of small, maneuverable warship called a corvette. Originally built in Flint, Michigan and St. Louis, Missouri, the Corvette is currently manufactured in Bowling Green, Kentucky and is the official sports car of the Commonwealth of Kentucky.
Document 11: General Motors: General Motors Company, commonly known as GM, is an American multinational corporation headquartered in Detroit, Michigan, that designs, manufactures, markets, and distributes vehicles and vehicle parts, and sells financial services. With global headquarters at the Renaissance Center in Detroit, Michigan, United States, GM manufactures cars and trucks in 35 countries. In 2008, 8.35 million GM cars and trucks were sold globally under various brands. GM reached the milestone of selling 10 million vehicles in 2016. Current auto brands are Buick, Cadillac, Chevrolet, GMC, Holden, and Wuling. Former GM automotive brands include McLaughlin, Oakland, Oldsmobile, Pontiac, Hummer, Saab, Saturn, as well as Vauxhall, and Opel, which were bought by Groupe PSA in 2017.
Document 12: Vetter Mystery Ship: The Mystery Ship was a limited edition motorcycle created by Craig Vetter and released in 1980. Only 10 were built, of which seven were sold. An example is on display at the AMA Motorcycle Museum in Ohio, and another at Barber Vintage Motorsports Museum in Leeds, Al. The one on display at the Barber museum is #9 and is a Turbo charged model.
Document 13: Caterham 7: The Caterham 7 (or Caterham Seven) is a super-lightweight sports car produced by Caterham Cars in the United Kingdom. It is based on the Lotus Seven, a lightweight sports car sold in kit and factory-built form by Lotus Cars, from 1957 to 1972.
Document 14: St. Louis Truck Assembly: St. Louis Truck Assembly was a General Motors automobile factory that built GMC/Chevrolet trucks, GM "A" body passenger cars, the Chevrolet Nova, and 1954-1981 Corvette models. Opened in the 1920s, it closed on August 7, 1986, although the plant essentially was doomed when on August 1, 1981 one assembly line was closed and Corvette production was shifted to Bowling Green Assembly Plant in Kentucky Thereafter, it only built R- and V-series crew cab and cab/chassis trucks before that output was moved to GM's Janesville Assembly. Automobile production was transferred to the new Wentzville Assembly in 1986.
Document 15: Dave Ryan (motorsport): Dave Ryan (born 12 May 1954 in New Zealand) was formerly the Racing Director of the Manor Formula One team (until their collapse before the 2017 season), and also formerly worked for the McLaren Formula One team as chief Mechanic, Team Manager and finally Sporting Director. He spent 35 years with McLaren until he left in April 2009 and set up VonRyan Racing to compete in GT racing.
ground_truth: 1953