2017 Mercedes-Benz SLC-Class: Formerly known as the SLK-Class, the 2017 Mercedes-Benz SLC-Class is a compact two-seat roadster that competes with the Alfa Romeo 4C and Porsche Boxster. It's refreshed with new engines this year.Those engines are a 2.0-liter turbocharged four-cylinder that makes 241 horsepower and connects to a nine-speed automatic transmission and a 3.0-liter V6 twin turbocharged V6 (AMG SL43) that makes 362 horsepower and also connects to a nine-speed automatic. The SLC is rear-wheel drive. The SLC300 has EPA-estimated fuel economy of 25 mpg city/32 mpg highway while the SLC43 has a rating of 20/29.Available features include Bluetooth, premium audio, infotainment system, and leather seats.Available safety features include stability control, traction control, rear-view camera, anti-lock brakes, and dual-front, front-side, front-knee and side-curtain airbags.The 2017 Mercedes-Benz SLC-Class has a base price of $47,950, not including dealer and destination fees.