Chalk up another ridiculously fuel efficient C-Class for those residing abroad, as Mercedes has unveiled yet another BlueEFFICIENCY model for the range – this time, the C 350 CGI BlueEFFICIENCY. Compared to the existing C 350, the CGI BlueEFFICIENCY variant uses 10 percent less fuel, with fuel consumption coming in at just over 28 mpg. As is that isn't reason enough to want one, the model's spray-guided direct inject V6 is also 15 percent more powerful than the C 350's traditional V6, with total output and torque weighing in at 215 kW/292 hp and 365 Nm, respectively (an increase of 15 kW/20 hp and 15Nm over the standard C 350). The result is a 0-62 mph time of 6.2 seconds, while top speed is limited to 155 mph. And did mention it gets 28 miles per gallon?