BMW is out to prove that drivers can have the best of both worlds with its highly publicised EfficientDynamics drive, and the latest and greatest recipient of this is the 120d Sports Hatch manual, featuring auto idle/stop and regenerative braking technologies, as part of a holistic approach to making cars leaner and greener. But BMW says it will never abandon the Ultimate Driving Machine mantra that underpins everything that the Bavarian car-maker does, so the most economical model it has ever offered in Australia is still very much an enthusiast’s car as well.