BlueEFFICIENCY from Mercedes-Benz stands for pioneering efficiency technologies as well as innovative packages of measures based on optimising fuel consumption and emission levels.

The BlueEFFICIENCY measures are comprehensive vehicle optimisations which help save fuel and ease the environmental impact. The SL Roadster combines the most efficient engines with well-designed aerodynamic and energy management measures to keep fuel consumption to a minimum.

Direct injection, downsizing, increased compression and turbocharging (V8 engine) in the current petrol engine generation enable top torque, output and noise reduction figures. Innovative engine technology makes it possible to significantly reduce emissions and fuel consumption compared with previous models.