The BMW Z models are a line of roadsters manufactured by German automaker BMW. The Z stands for zukunft (German for future), and has been produced in four different series with six generations consisting of roadster, coupé, sports car, and concept variants. The introduction of the M Coupé and M Roadster in the Z3 line marked the first of the Z series to have a high-performance BMW M variant. The first generation Z4 also continued to offer M Coupé and M Roadster vehicles. The current Z4 (G29) uses BMW's (B58B30) inline-six, its platform is the basis for the current Toyota Supra. The BMW Z4 (G29) is a two-door roadster produced by BMW. It was introduced in 2018 as a successor to the BMW Z4 (E89). The Z4 (G29) marks the return of the soft-top roof as opposed to its predecessor.