Revell 1/24 BMW Z1 Kit The BMW Z1 was created in 1986 as a concept car and was not originally intended for production. This experimental platform however was so convincing that the open two-seater simply had to roll off the line in larger numbers. In 1987 at the IAA in Frankfurt, the roadster was received with rapturous enthusiasm. The former concept car went into production in July 1989.