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Buick is doubling down on its Regal bet by offering the TourX wagon alongside the four-door Sportback. A 250-hp 2.0-liter turbo four drives a sophisticated—and standard—all-wheel-drive system through a slow-reacting eight-speed automatic. Drop the Regal TourX’s flat-folding rear seat and the cargo bay grows to a cavernous 74 cubic feet. A 7.0- or 8.0-inch touchscreen infotainment system with Apple CarPlay and Android Auto graces the dashboard, and an onboard Wi-Fi hotspot is standard.