Competition is quite fierce in the compact luxury SUV segment, but the third-generation RDX stands out with excellent driving dynamics (helped by Acura’s newly improved SH-AWD system), high build quality and a roomy, comfortable interior. Under the hood is a turbocharged four-cylinder engine rated at 272 horsepower and mated to a 10-speed automatic transmission. The list of safety features on the RDX is impressive, just like the available 16-speaker ELS Studio 3D sound system.