UK Drive: Alpina B4SStaff writerAOL cars tests the Alpina B4S, a reworked version of the BMW M4, to see how it compares with BMW's offering.
UK Drive: Alpina B4SStaff writerAOL cars tests the Alpina B4S, a reworked version of the BMW M4, to see how it compares with BMW's offering.