The TSX is the smallest sedan in the Acura range; and while it definitely has less interior space than the larger TL and RL sedans, the difference isn't as significant as you might think. Excellent seats, a good driving position, reasonable cargo space, and good ride comfort all make the TSX a little more useful, altogether, than many other sedans that have a sporty edge.
Front seats are impressive, with multi-adjustments and good comfort for a wide range of sizes--although some won't be happy with their almost overly firm feel. Back seats are contoured for adults, but legroom and headroom could be tight for six-footers.
Sedans get a surprisingly roomy trunk, while Sport Wagon models for this year get 5.7 cubic feet more space. How so? Acura's done away with the spare tire completely, replacing it with a repair kit. Across all the models, there are plenty of in-cabin pockets and compartments, And if it isn't obvious from a first glance, we think that the Sport Wagon is far roomier than the larger, heavier, less useful and mostly ridiculous Acura ZDX crossover.
Comfort and quality of the TSX are just shy of top-notch, but they're right on par for the mid-size luxury sedan segment. Ride quality is on the firm side, yet compliant enough for most rough roads; and the only issue some might find is that road noise can be obtrusive on some surfaces. Cabin materials are nothing special in themselves, but they're all well-coordinated, with good fit and finish.