The BMW E21 is a compact executive car produced by BMW from 1975 to 1983. It was the first generation of the BMW 3 Series and was designed to replace the BMW 2002. The E21 featured a range of inline-four and inline-six engines, offering a balance of performance and efficiency. The E21 was known for its sporty handling and distinctive styling, which included a sloped front end and a clean, minimalist interior. It was available in various trims, including the popular BMW 320i, and gained a reputation for reliability and driving pleasure, contributing to the brand's legacy in the automotive market.