Against tough competition like the Lexus RX, BMW X3, and Audi Q5, the 2014 Acura RDX holds up admirably in almost every respect pertaining to comfort, space, and versatility.
Last year's redesign brought a roomier RDX, with improvements for front and rear passengers, as well as more cargo space. In front, the cabin is comfortable and relatively spacious, with enough adjustment to fit both taller and shorter passengers, though the length of the seat bottoms is a bit short for longer-legged drivers. In back, it's perhaps too narrow for three adults but still suitable for all but those in the six-foot-plus club.
Plastic plays a more dominant role on the dash, and the fit and finish aren't quite as tight and tidy as the Audi Q5's, but otherwise materials are impressive, fit and finish is good, and the RDX cabin feels every bit like that of a luxury vehicle. The cabin is well-laid-out, too, with cubbies and nooks for storage, and ergonomically-placed if not always logically laid-out controls.
And if you drove an RDX a couple of model years ago, this one bears no semblance to it with respect to ride quality and general cabin comfort. The 2014 RDX has a smooth, well-damped ride, with enough confidence for sportier moments, and it filters out road, wind, and tire noise admirably.