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 ...

The 1965 Buick Riviera Gran Sport (GS) stands as a testament to the fusion of luxury and muscle, boasting impressive performance capabilities that allowed it to reach 60 mph in approximately 7 seconds ...

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 ...