With the new WRX, Subaru adds another layer of refinement to a package that's needed it. The space is more generous, the materials better presented. It's by no means a luxury car, and that does separate it still from some of the very upscale looks in the compact-car class.
The Impreza / WRX have grown in this generation, up about an inch of wheelbase in their current forms, with more resulting space in the back seat and in the trunk.
In front, that means lots of elbow room for average-size adults. The WRX's base seats are covered in grippy fabric, with power adjustment and leather trim on the options list. In back, almost two more inches of leg room complements thinner front seat backs, netting out with good space for two adults--but not three. Any middle-seater will feel pinched.
Interior storage is fine, with generously sized bins and trays, and the trunk is a bit larger--up from 11.3 cubic feet to 12 cubic feet. The rear seat folds down for expanded stow space--outdoor gear if you must, maybe a real spare tire if you're out hustling the WRX and find a nail.
Like the Impreza, the WRX has a substantially nicer dash and surfaces than in the last-generation vehicle. It's mostly clothed in soft-touch, low-gloss plastics, with simpler controls than in some other compacts--particularly some of its Asian competitors. It's not a particularly sexy treatment at all, and it's enjoined by a characteristically high amount of wind and tire noise common to most Subarus.