2017 Audi A4: The 2017 Audi A4 is a compact luxury sedan that competes against the BMW 3-Series and Lexus IS. Redesigned for 2017, the A4 gains more power and refreshed styling.The A4 is available with either front- or all-wheel drive, and power comes from a 2.0-liter turbocharged four-cylinder engine that makes 252 horsepower and mates to a seven-speed automatic transmission. Fuel economy is EPA-estimated at 25 mpg city and 33 mpg highway with either drivetrain layout.Available comfort, connectivity, and convenience features include LED headlights and taillights, USB port, Bluetooth, satellite radio, Apple CarPlay, Android Auto, head-up display, tri-zone climate control, leather upholstery, power sunroof, navigation system, multimedia infotainment system, 12.3-inch display screen, premium audio, keyless entry and starting, adaptive cruise control and 4G LTE hotspot.Available safety and driver-assistance features include active lane-assist, traffic-sign recognition, rear cross-traffic alert, pedestrian and vehicle collision-warning, rearview camera, front- and rear-parking sensors and a 360-degree parking camera.The 2017 Audi A4 comes in three trims: Premium, Premium Plus, and Prestige. It starts at $37,300, not including destination charge or other fees.