+E21 is the internal designation for the first generation of the [BMW](/wiki/bmw) 3 Series compact executive cars. Introduced in 1975, it replaced the beloved [02 Series](/wiki/02_series) and established the blueprint for a future dynasty of driver-focused automobiles.
+## See also
+- [3 Series](/wiki/3_series)
+- [Classic Car](/wiki/classic_car)
+- [Compact Car](/wiki/compact_car)
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