The C300's new engine, first hinted at last month by paperwork the automaker filed with the NHTSA, will be a direct-injected 3.5-liter V6 with 248 horsepower and 251 lb-ft of torque. The motor is a detuned version of the 302-horsepower V6 used in the C350 and E350, Car and Driver reports.
No word on fuel economy numbers for the 3.5-liter, which will include a stop-start system and Eco mode as standard equipment. The current C300 4MATIC is rated at 18 mpg in the city and 25 mpg on the highway.