Less fuel, more driving pleasure.

BMW EfficientDynamics in the BMW 1 Series Convertible.

Behind BMW EfficientDynamics lies a package of intelligent features which considerably reduce emissions and improve fuel consumption while, at the same time, boosting performance. They ensure that the new BMW 1 Series Convertible sets new standards in terms of the efficiency and economy of its engine: it is one of the first BMWs to offer the new Auto Start Stop function, Brake Energy Regeneration and a host of drivetrain modifications. Together, they solve the "power vs. fuel consumption" dilemma in a way that's never been seen before.