The Buick Regal slots neatly into the mid-size segment, but to some the appearance is deceiving. It sits at the midway point between a VW Passat and a VW Jetta—or a Ford Focus and a Ford Fusion—but especially in its back seat, it can seem much more snug than other mid-sizers in the class. That makes it a more difficult pitch against roomy sedans like the Nissan Maxima, though it's still quite comfortable for four adults.
In front, the Regal has a power-adjustable driver seat, covered in leather, and with just enough bolstering formed into the seatback to take your mind off the flatness of the bottom cushion. It's comfortable, not constrained, but there's less head and leg room than in other mid-size sedans. You'll notice it more if you opt for the sunroof and if you slide the seat back into the knees of the rear passengers.
The sticker says we can fit three in the back, but we're not sure we'd ever stick more than two adults back there. Buick says the Regal has roughly the same amount of leg room as a Honda Accord, but the big cushions in the Buick make the back seat feel smaller than the Honda—even though the Regal has 3 more inches in back than the TSX. The Regal's roofline is a little more aggressive than other sedans, which means tall heads may rub up against the top, but the Buick has enough space—it's comparable to a Volkswagen Passat.
The Buick is a little cramped when it comes to cargo room. Only 14.3 cubic feet in the trunk, which is about 3 or 4 cubes smaller than other sedans, and much smaller than the Ford Taurus, which boasts 20 cubes in its cavernous trunk.