The BMW Z1 was a short lived roadster built from 1989 until 1991. Featuring unique vertically sliding doors, the Z1 was powered by an 2.5L inline 6 engine that sent drive to the rear wheels through a 5 speed manual transmission. Uniquely for a car of this era, the Z1 did not feature air conditioning as a factory option due to underhood packaging. The Z1 was the first BMW car badged a Z, short for Zukunft, which means future in German. Only 8,000 examples were built before BMW discontinued the car in 1991.