The 2016 Acura RLX fills a gap in the automaker's lineup left by the departure of the RL luxury sedan in 2012. The RLX is powered by a 3.5L direct-injection aluminum V6 making 310 horsepower and 272 pound-feet of torque, which is mated to a 6-speed automatic transmission with Sequential SportShift paddle shifters and Grade Logic Control. With a curb weight of 4,000 pounds, the RLX isn't light, but the powertrain works well to propel the car to 60 mph in under seven seconds. The RLX Sport Hybrid makes an extra 66 horsepower thanks to a 3-motor system, and comes paired with a dual-clutch 7-speed transmission. The RLX features unit body construction and rides on independent double wishbone suspension with lower control arms up front and an independent multi-link with coil springs and a stabilizer bar in the rear. Acura's Agile Handling Assist System provides active braking of individual wheels to assist in cornering, while the crown jewel of the RLX's dynamic handling is Precision All-Wheel Steer (P-AWS). The system enables the rear wheels to adjust toe angles independently of each other, while working in conjunction with Agile Handling Assist and Vehicle Stability Assist. Four-wheel 12-inch disc brakes provide stopping power, while 19-inch alloy wheels hold road-hugging high-performance all-season tires. Up front, "Jewel Eye" LED headlights provide what Acura claims to be a whiter, brighter beam than either HID or halogen lamps. Standard equipment in the RLX with Technology Package includes leather seating, front 12-way power seats, navigation, a premium 14-speaker audio system, Bluetooth hands-free connectivity, and AcuraWatch, which features a multi-view rear camera, Forward Collision Warning system, Lane Departure Warning, Road Departure Mitigation, Blind Spot Monitoring, and more. The RLX with Advance Package adds 450-watt 14-speaker Krell sound system, surround-view camera, remote start, power sunshades, heated steering wheel, heated and ventilated front seats, and heated outboard rear seats.