A beautifully restored 1965 Buick Riviera Gran Sport, one of just 3,354 built that year with the high-performance GS package, is now being offered for sale in Arizona, representing a rare intersection ...

Known as one of the most beautiful American cars of its era, the first-gen Riviera received an infusion of muscle in 1965 thanks to the addition of the Gran Sport performance package. By the late ...

The Buick Riviera GS occupies a rare space in American car culture, blending personal luxury with genuine performance hardware in a way that still feels distinctive today. Collectors now look back on ...

If you wanted a Riviera in 1966, the chances are that you opted for the 425 V8 engine rated at 340 horsepower. This was the base offering and the most common choice for Riviera buyers, making its way ...