Home » 2017 BMW i6 Is Hiding in Plain Sight: 2009 BMW Vision EfficientDynamics Teased LWB i8 » BMW Vision EfficientDynamics (11/2010). BMW Vision EfficientDynamics (11/2010). Home » 2017 BMW i6 Is Hiding in Plain Sight: 2009 BMW Vision EfficientDynamics Teased LWB i8 » BMW Vision EfficientDynamics (11/2010).