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

Documents:
source: Chevrolet Corvette
text: 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.

source: Dave McLellan
text: 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.

source: Ferrari TR
text: Ferrari TR The Ferrari TR, or 250 Testa Rossa, is a race car model built by Ferrari in the 1950s and 1960s. They were introduced at the end of the 1957 season in preparation for the regulations restricting sports cars to 3 litres for Le Mans and World Sports Car Championship races from 1958. These cars dominated their competitors, with variations winning 10 World Sports Car Championship races including the 24 Hours of Le Mans in 1958, 1960, and 1961, the Sebring 12 Hours in 1958, 1959 and 1961, the Targa Florio in 1958, the Buenos Aires 1000Km in 1958 and 1960 and the Pescara 4 Hours in 1961. These results led to World Sports Car Championship titles in 1958, 1960 and 1961 with only the Aston Martin DBR1 defeating the Testa Rossa at the Nurburgring in 1958 and at Le Mans, the Nurburgring and Tourist Trophy and the World Championship in 1959. They were closely related to the rest of the Ferrari 250 line, including the 250 GTO.

source: Kathy Rude
text: Kathy Rude Kathy Rude (born 1957) is an American sports car driver who was one of the first female drivers to attract international attention. Growing up in Victoria, Canada, she began competing as a teenager in karting events. By her early 20s, after competing in Formula Ford and Formula Atlantic, she attracted the attention of several top-tier car owners, and tested an IndyCar owned by Dick Simon. She was a member of the original North American Toyota factory-sponsored IMSA GT Championship sports car team in 1981. In February 1982, co-driving a factory-sponsored Mazda RX-7 with Allan Moffat and Lee Mueller, she earned a GTU class victory at the 24 Hours of Daytona—the first woman ever to win a major professional sports car event. She signed a deal to make her debut at the Indianapolis 500 in 1984, but during an IMSA sports car event at Brainerd, Minnesota in July 1983, she suffered horrific injuries in a crash which ended her racing career. Noted sports car champion Brian Redman once referred to her as the only female driver he'd encountered who posed a genuine threat to win major professional automobile races. She is now a corporate safe driving instructor and speaker.

source: SCCA National Sports Car Championship
text: SCCA National Sports Car Championship The SCCA National Sports Car Championship was a sports car racing series organized by the Sports Car Club of America from 1951 until 1964. It was the first post-World War II sports car series organized in the United States. An amateur championship, it was eventually replaced by the professional United States Road Racing Championship and the amateur American Road Race of Champions.

source: Prodrive P2
text: Prodrive P2 The Prodrive P2 is a prototype two-seater sports car designed, engineered and built by Prodrive at its Banbury and Warwick sites. The car is based on the platform of the Subaru R1 kei car and has a modified Subaru Impreza WRX STi engine along with many Prodrive systems originally designed for their World Championship and Sports Car Racing programmes. The car's styling was done by Peter Stevens, who also designed the McLaren F1. The car includes rally-inspired anti-lag to prevent turbo lag, as well as an active center and active rear differential that maximizes grip.

source: Colt Ring Lever rifles
text: Colt Ring Lever rifles The Colt First Model Ring Lever rifle and Colt Second Model Ring Lever rifle are two early caplock revolving rifles that were produced by the Patent Arms Manufacturing Company between 1837 and 1841. The First Model, produced between 1837 and 1838, was the first firearm manufactured by Samuel Colt, developed shortly before the advent of the Colt Paterson revolver. The First Model was succeeded by the Second Model, produced between 1838 and 1841, which featured minor variations in design and construction. Both models are distinguished from later Colt revolving long-arms by the presence of a small ring lever located in front of the trigger. This lever, when pulled, would index the cylinder to the next position and cock the internal hidden hammer. Although complicated in design and prone to failures, fifty First Model rifles were ordered by the U.S. Army for use against Seminole warriors in the Second Seminole War.

source: Oak Tree Grand Prix
text: Oak Tree Grand Prix The Oak Tree Grand Prix is a sports car race held at the Virginia International Raceway in Alton, Virginia, since 1957. After being a part of the SCCA National Sports Car Championship and the IMSA GT Championship the race, along with the track, went on hiatus from the early 1970s until 2002. It returned as a round of the Rolex Sports Car Series, and became an American Le Mans Series race in 2012. In 2014 the race joined the schedule of the United SportsCar Championship after the merger of the American Le Mans Series and the Rolex Sports Car Series.

source: Etox
text: Etox Etox is the first Turkish automobile manufacturer dedicated exclusively to building sports cars. The company is based in Ankara, Turkey. Its first model, the Etox Zafer, is the second Turkish sports car after the Anadol STC-16, which was produced from 1973 to 1975.

source: Romano WE84
text: Romano WE84 The Romano WE84 is an Australian designed and built, mid-engined closed top racing car built to CAMS Group A Sports Car specifications. The car began its life as the Kaditcha K583 when it first appeared in the 1983 Australian Sports Car Championship and was built by the Queensland based Kaditcha owner and former McLaren engineer Barry Lock after he was approached by Brisbane accountant, property developer, timber mill owner and former speedway racer Bap Romano in 1981 with the idea of building a Le Mans type coupe. When the car first appeared in 1983, it was the first closed top Sports Car seen in Australia and looked like an FIA Group C Sports Car (such as the Porsche 956) rather than the open cockpit Can-Am style cars of previous years. This led to the false belief that it was built to the Group C regulations

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Answer: 1953