Sport utility vehicle-like styling features of the Terraza include its closer-to-vertical squared-off front fascia and its tall hood. Prominent C-pillars and 17-inch wheels are also supposed to bring SUVs to mind. Gently sculpted forms, on the other hand, are strictly Buick in nature. The Terraza's familiar grille is a variant on the traditional Buick design. Vertical bars and a chrome surround are meant to reflect Buick's Centieme concept vehicle.

The Terraza's exterior is highlighted by bright chrome accents on the door handles, among other places, and "Buick" is embossed into the bright-finished rear license plate brow. Built on a 121.1-inch wheelbase, the Terraza is 204.7 inches long overall and 69.4 inches tall.