Adrenaline Starts NowThe RDX puts horsepower, fuel efficiency and driving performance well within your reach. With the 3.5-litre, 24-valve SOHC i-VTEC® 6-cylinder engine, you’re connected with V6 power. The exceptional drive is enhanced further by the smooth, responsive power delivery of the Drive-by-Wire Throttle System™. And thanks to Variable Cylinder Management® (VCM®), you get help with your fuel economy when the RDX shuts down cylinders that aren’t needed in certain driving conditions.