This particular Bimmer provided a positive answer to an important scientific question – whether the mass of driving pleasure derived from a given vehicle equals the mass of the dollars paid for it. A depressing number of today’s new cars fail to offer a pleasure quotient equal to their prices. The BMW 318is, on the other hand more than justified the dollars paid. If you accept this thesis that the 318is ‘s output driving pleasure exceeds the input of dollars in this equation, the difference between the mass of the pleasure and the mass of the money could only be explained by the release of considerable energy. This is called bang for the buck.