The Acura RDX 4WD is a five-passenger luxury crossover SUV manufactured by Honda's luxury division Acura. It is available with either a two-wheel drive or an all-wheel-drive system. The RDX 4WD comes standard with a 3.5-liter V6 engine, a six-speed automatic transmission, and a Super Handling All-Wheel Drive system. Additionally, the RDX has a host of modern technology and driver-assistance features including adaptive cruise control, collision-mitigation braking, lane-keep assist, and blind-spot monitoring.