Mercedesclaims a 0-to-60-mph time of 4.1 seconds—three-tenths quicker than the standard C63, and two-tenths up on C63s fitted with the development package—but our most recent test in a C63 Morepowerful still is the C350, with a new 3.5-liter V6 that makes 302 horsepower. The voracious C63 AMG boasts a 6.3-liter V8 that makes 451 horsepower – and has fuel-economy numbers that add MercedesBenz Model: C-Class Body type: Sedan Doors: 4 doors Drivetrain: Rear-Wheel Drive Engine: 451 hp 6.2L V8 Exterior color: Mars Red Combined gas mileage: 15 MPG Fuel type: Gasoline Interior color: Black Transmission: 7-Speed Automatic Mileage: 47,760 NHTSA overall safety rating: Not Rated Stock number: STK303432 VIN: Ct2n.