From earlier’s obscure E21 B6 2.8 we move on to the much more popular (then and especially now) E30 model. Alpina once again worked their magic in many ways over the production of the E30, steadily increasing output to try to stay one step ahead of the factory. Up until 1986, that was a bit easier, but the introduction of the M3 model that year put some serious pressure on Alpina and would result in the M30 based B6 2.8 and 3.5 models, but the earlier Alpina models were based upon the M20 323i powerplant. Punching that out to 2.5 and later 2.7 liters as BMW released its own updates, the ultimate result was 210 horsepower from the larger unit. These were expensive cars in their day and consequently few were sold, but performance was top-notch and it was a premium product from the unique manufacturer:
