The Mercedes-Benz CLS400 is a four-door luxury sedan that was produced by Mercedes-Benz beginning in 2012. It was available with a 3.5L V6 engine that could generate 302 horsepower and 273 lb-ft of torque. The CLS400 was offered with a seven-speed automatic transmission and a Sport Package that included an adaptive suspension, staggered wheels, and a sport steering wheel. The CLS400 was based on the E-Class platform and featured a cabin that was more luxurious than the E-Class. It was available with a variety of features, including heated and ventilated leather seating, an infotainment system, a navigation system, and a panoramic sunroof.