The BMW Z4 is a series of compact luxury roadsters produced by BMW since 2002, renowned for its sporty design and precise handling. Spanning multiple generations — from the first E85 model introduced in 2002, to the second E89 hardtop convertible in 2009, and the current G29 generation launched in 2018 — the Z4 has evolved with advances in technology and performance while maintaining its distinct driving character. Sizes and dimensions have varied slightly across generations, reflecting improvements in aerodynamics and interior space. The Z4 remains a popular choice for enthusiasts seeking a blend of style, comfort, and dynamic driving experience.