As General Motors' first entry into the personal luxury car market segment, the Riviera was highly praised by automotive journalists upon its high-profile debut. The ground-up design that debuted for 1963 was also Buick's first unique Riviera model, and it pioneered the GM E platform.
Unlike its subsequent GM E platform stablemates, the Oldsmobile Toronado and Cadillac Eldorado, the Riviera was initially a standard front engine/rear-wheel drive platform, only switching to front-wheel drive starting for 1979.
While the early models stayed close to their original form, eight subsequent generations varied substantially in size and styling.