2017 Acura RLX: The 2017 Acura RLX is a luxury sedan that faces off against the BMW 5-Series and Mercedes-Benz E-Class. This five-seater has an optional hybrid powertrain and an available all-wheel-drive layout, as well as offering a conventional gas-powered V6 powertrain.Two engines are available - a 3.5-liter V6 that makes 310 horsepower and a hybrid version of the 3.5-liter V6 that makes 377 horsepower. The gas-powered V6 mates to a six-speed automatic transmission and the car has front-wheel drive, hybrid versions have all-wheel drive and a seven-speed automatic transmission. EPA-estimated fuel economy for the V6 is 20 mpg city/30 mpg highway and for the hybrid, it's 29/30.Available features include adaptive cruise control, navigation, infotainment system, head-up display, Bluetooth, satellite radio, Pandora internet streaming radio, USB, leather seats, tri-zone climate control, heated and cooled front seats, heated rear seats, heated steering wheel, power moonroof, fog lamps, and power rear sunshade.Available safety features include anti-lock brakes, traction control, stability control, rear-view camera, 360-degree camera, front and rear parking sensors, forward-collision warning, collision-mitigation braking, lane-departure warning, lane-keep assist, blind-spot alert, rear cross-traffic monitor, road-departure mitigation, and dual-front, front-side, driver-knee and side-curtain airbags.The 2017 Acura RLX has a base price of $54,450, excluding tax, title, registration, and dealer fees.