2017 BMW 5-Series: The 2017 BMW 5-Series is a mid-size luxury sedan, also available as a four-door "Gran Coupe," that competes with the Lexus GS and Mercedes-Benz E-Class. It's refreshed and adds new features for 2017.Available engines include a 2.0-liter twin-turbocharged four-cylinder that makes 248 horsepower and a 3.0-liter six-cylinder that makes 335 horsepower. The only available transmission is an eight-speed automatic. The 5-Series is offered with rear- or all-wheel drive.Available features include navigation, premium audio and an on-street parking information system that will help drivers find open spots.Available safety features include traction control, stability control and a standard suite of airbags.