
This enhancement of efficiency comes out particularly in the new BMW 730d. Offering average fuel consumption of just 7.2 litres/100 kilometres (equal to 39.2 mpg imp) in the EU test cycle, this is the most economical car in its entire segment, with a standard of all-round fuel efficiency made possible by the first generation of straight-six diesel engines. The newly developed power unit comes with an aluminium crankcase and the latest generation of...