This C63 S is especially desirable, as it's a Final Edition model with reasonably low mileage and no modifications. It also features some great factory equipment, including the Driver Assistance and Parking Assistance packages, an electronic limited-slip differential, and a Burmester sound system. Power comes from an M177 twin-turbocharged 4.0-liter V8, rated at 503 horsepower and 516 lb-ft of torque. Output is sent to the rear wheels via a 9-speed automatic transmission.