Mercedes-Benz C-Class models have launched the ECO start / stop function of the standard. All engine variants are now classified as a unit of BlueEFFICIENCY, indicating that they are very efficient and environmentally friendly in use of fuel. In the future all the automatic version will have a sophisticated PLUS 7G-TRONIC seven-speed automatic transmission. In addition, the overall ratio of all new drivetrain variants optimized to reduce fuel consumption. All petrol engines have a series of direct injection model. One of the highlights is the introduction of the new V6 petrol engine with an innovative process and highly efficient in the blue immediate BlueEFFICIENCY C 350. Quantum leap in efficiency is very well illustrated by the six-cylinder unit: Power increased significantly, C 350 BlueEFFICIENCY provides 306 hp and 370 Nm (previously 292 hp and 365 Nm). The most economical model in the Mercedes C-Class is now also more economical: C 220 CDI BlueEFFICIENCY with six-speed manual standard and ECO start / stop function. This corresponds to 117 grams of CO2 per kilometer. In combination with the 7G-TRONIC PLUS transmission repair and automatic ECO start / stop function is included as a default, the BlueEFFICIENCY C 220 CDI and C 250 CDI BlueEFFICIENCY upper-class characters to give 58.8 mpg fuel economy combined. This corresponds to CO2 emissions of 125 grams per kilometer. Mercedes-Benz C-Class also saw the debut of the new telematics generation also will be introduced <b>...</b>