Prototype Research & Development Ltd was a Canadian specialist manufacturer of fiberglass replica and one-off specialty vehicles based in Campbellford (Trent Hills), Ontario. Established by David Carlaw, the firm focused on hand-built reproductions of rare 1930s–1950s automobiles, supplying both turnkey cars and kits to private buyers, corporations and government agencies. Its catalogue centred on replicas of the 1935 Auburn Speedster and…