2011MY Mercedes-Benz EPA Fuel Mileage Estimates Sep 24, 2010 Model Drivetrain City Highway Combined C300 6-spd Manual 18 26 21 C300 7-spd Automatic 18 26 21 C300 4MATIC 7-spd Automatic 18 25 20 C350 7-spd Automatic 17 25 20 C63 AMG 7-spd Automati... Share Save Saved Download