Mercedes has unveiled at the Paris Auto Show the S 250 CDI BlueEFFICIENCY, the world’s most fuel-efficient luxury sedan. It is powered by four-cylinder turbo engine that delivers 204 HP and 500 NM of torque and delivers a total of 5,7 liters engine per 100 kilometers. The car sprints from 0 to 60 mph in just 8,2 seconds and can hit a top speed of 150 mph.
The engine is mated to ECO start/stop system. This system shuts down the engine as soon as the vehicle comes to a stop – e.g. at traffic lights – and the driver continues to press the brake pedal while it is stationary. The engine starts again immediately as soon as the driver releases the brake pedal or presses the accelerator pedal.
The ECO start/stop function will not switch the engine off for example if the desired interior temperature has yet to be reached, if the driver has switched off the system or if drive programmes "S" or "M" are active. An intelligent control system ensures that all functions and comfort systems otherwise remain in operation during the stop phase.
Press release after the jump.