The BlueEFFICIENCY measures are put together on an individual model basis. This involves testing and analysing all vehicle components for increased efficiency. The package of BlueEFFICIENCY measures covers factors including improved aerodynamics, the use of lightweight materials, intelligent energy management, and optimisation of the steering system for more energy-efficient power steering. The objective is to reduce fuel consumption. The C-Class equipped with BlueEFFICIENCY package consumes up to 23% less fuel. Today 66 BlueEFFICIENCY models are available – for the A-Class, B-Class, C-Class, CLC-Class, E-Class, M-Class, GL-Class, R-Class, GLK-Class, S-Class and CL-Class.