The BMW 4 Series is a compact executive car produced by the German manufacturer BMW. Introduced in 2013, it was created as a separate model line to distinguish the sportier coupe and convertible versions from the BMW 3 Series sedan. The 4 Series emphasizes dynamic styling and performance within the premium compact segment.

The model has been offered in several body styles, including a two-door coupe, a convertible with a retractable roof, and a four-door Gran Coupe featuring a sloping roofline and hatch-style rear. It typically seats four to five passengers, depending on configuration. Engine options include turbocharged four- and six-cylinder units, with high-performance variants developed under the BMW M division.

The BMW 4 Series combines responsive handling with modern digital displays, infotainment systems, and advanced driver-assistance technologies. It is positioned for drivers seeking a balance between everyday usability and sport-oriented driving characteristics.