Elva was the name given to a sports car and a series of competition two-seaters built in Salvador, Bahia, between 1968 and the early 1970s by Rio-born engineer and kart racer Élcio Paiva, then living in Bahia, the brand's name drawn from his own. The project began purely as a personal build: inspired by the Ford GT40 and contemporary Lamborghini sports cars, Paiva designed a GT around Volkswagen mechanicals, using…