2017 Mercedes-Benz SL-Class: The 2017 Mercedes-Benz SL-Class is a luxury two-seat roadster that competes with other sporty two-doors such as the Audi A5/S5, BMW 6-Series, and Jaguar F-Type. New for 2017 are refreshed looks and new tech features.The SL-Class is offered in four flavors, with four engines: A 3.0-liter twin-turbocharged V6 that makes 362 horsepower, a 4.7-liter V8 that makes 449 horsepower, a 5.5-liter twin-turbocharged V8 that makes 577 horsepower and a 6.0-liter V12 that makes 621 horsepower. The SL has rear-wheel drive, and the two smaller engines mate to a nine-speed automatic transmission while the larger two pair to a seven-speed. EPA-estimated fuel economy ranges from 13 mpg city to 28 mpg highway.Available features include satellite radio, premium audio, navigation, heated and cooled seats, and Apple CarPlay.Available safety features include pre-collision system, active brake assist, attention assist, rear-view camera, lane-keep assist, blind-spot assist, and distance-based cruise control.The base price for the 2017 Mercedes-Benz S-Class is $86,950, not including destination and dealer fees.