As we've noted, the Lucerne focuses largely on comfort, so it's not surprising that the Lucerne features large seats and a quiet cabin. Ample storage space can be found in the cabin and trunk, while materials are generally good throughout, particularly in the Super.
The rear seats boast "an inch more rear legroom" than the previous Park Avenue, according to Kelley Blue Book, and ConsumerGuide notes that "only taller riders might wish for more head clearance," though they point out that while "legroom is good," it's down low where there's a problem-"foot space is tight."
Both the CX and CXL can also be configured with six-passenger seating via a front bench seat.
According to Cars.com, "seating for either five or six occupants is available," depending on the style of front seat. However, ConsumerGuide points outremarks, however, that "Three-across travel is complicated by an uneven floor and cushion shape." Edmunds disagrees, finding that with both five- and six-seat options, "room is abundant in any position," though they note that "seat comfort is only average."
Storage space is good, but not without its quirks. Consumer Guide notes that the Lucerne's "[trunk] lid hinges intrude into the cargo area," and that the "small rear-seat pass-through" doesn't serve as an adequate replacement for folding rear seats. In the cabin, they go on to find storage space to be "subpar," mostly due to "a small glovebox and door map pockets." Cars.com states that "the trunk holds 17 cubic feet of cargo," a solid figure for the segment.
Fit and finish aren't quite up to European standards, but buyers interested in a classically- styled car likely won't mind. CXL, CXL Premium, and Super models feature standard leather upholstery, while the CX comes standard with cloth seating.
ConsumerGuide finds that whilesays, "Cabin materials are mostly of high quality," but also remark thatsome of the interior's "lightweight plastic panels seem out of place given Lucerne's pricing." The Lucerne Super makes up for the shortcomings with "a leather-covered dashtop and upgraded trim more befitting the car's near-luxury status." Edmunds also notes a "few low-grade plastic pieces thrown into the mix, and fit and finish needs improvement."
Quietness is a strong suit of the 2010 Buick Lucerne. Consumer Guide says the Lucerne models it reviewed "were impressively quiet," and Autoblog reports that all Buick Lucerne models feature "an exclusive engineering process called QuietTuning to reduce, block and absorb noise from entering the interior."