Alpina produced two variants of the BMW E60 5 Series, the B5 and the B5S. Both cars were fitted with a 4.4L supercharged V8 engine, but the B5S received an uprated version capable of producing 523hp as opposed to the 493hp available in the B5. Available as both a sedan and wagon, the E60 B5 was replaced by the Alpina F10 B5.