Alpina introduced variants based on the E21 BMW 3 Series starting in 1975. The two main variants offered were the B6 2.8, and the C1 2.3. Alpina continued to produce these E21 based cars until 1983.
Q: What years was the BMW Alpina E21 sold?
A: The BMW Alpina E21 was sold for model years 1975 to 1983.