The BMW Z1 is the first model in BMW's line of Z series roadsters (two-seater convertibles), and was produced in limited numbers from 1989 to 1991.

The Z1 is unique for its plastic body panels and vertically sliding doors which drop into the door sills. It is one of the first BMWs to use a multi-link rear suspension. The sole drivetrain specification is the 2.5-litre straight-six engine and 5-speed manual transmission from the E30 325i.

In 1995, the Z1's successor, the mass-produced Z3, began production.

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At the start of 1985, BMW set up a division called BMW Technik GmbH to develop concepts for new vehicles and technologies. The director of BMW Technik GmbH was Ulrich Bez, who oversaw the Z1's development. Control of the project was turned over to Klaus Faust when Bez left BMW in October 1988.[citation needed] The lead designer was Harm Lagaay.[1]

In August 1985, the BMW board gave approval to further develop the BMW Technik's first concept vehicle, the Z1.[2] A year later, the first road-going prototype was produced and BMW publicly revealed the project. A coupe model was also the subject of a design study, but it did not reach production.