The Alpina D5 is a high-performance luxury diesel sedan based on the BMW 5 Series, developed by the German tuning manufacturer Alpina. Starting from its first generation introduced in the mid-2000s, the D5 has evolved through several iterations, each refining powertrain, design, and interior features while maintaining distinctive Alpina styling and exclusivity. Known for combining diesel efficiency with sporty dynamics, the D5 offers a unique niche in the luxury executive car segment. Across generations, the Alpina D5 remained true to its blend of performance, refinement, and upscale comfort.