A famous old name, last used in 1958, graced the latest full-size, rear-drive Buick, offered first as an Estate wagon. Fully restyled with a rounded aero look, Roadmaster used the same chassis and mechanicals as the Chevrolet Caprice and Oldsmobile Custom Cruiser wagon--both redesigned for '91. A driver-side airbag was mounted in a standard tilt steering wheel. Antilock braking was standard. Only one powertrain was available: a 170-horsepower, 5.0-liter V8 driving a 4-speed automatic transmission. Wagons had woodgrain siding and two or three rows of seats, for up to 8-passenger capacity. A fixed-glass "vista roof" sat above the middle bench, while a 2-way tailgate swung open to the left. Center and rear seats fold to create a flat cargo area, which can hold a 4x8 sheet of plywood.