Elfin was an Australian sports-car and racing-car manufacturer founded in 1959 by Garrie Cooper in Edwardstown, South Australia. It became one of the country’s best-known specialist marques, producing a long line of single-seaters, sports-racers, and Clubman-style road cars. Across the Cooper era, Elfin built models such as the Streamliner, Mallala, Mono, 600, 700, MR5, MR6, and MR8, and its cars won Australian championships and major races in…