1966 Buick Riviera GS – A Classic Blend of Luxury and Performance

The 1966 Buick Riviera GS is a testament to Buick’s commitment to combining luxury and performance in a single, stylish package. This specific model, with its numbers-matching 425 cubic inch V8 engine, Super Turbine 400 automatic transmission, and a host of factory options, stands as a fine example of mid-60s American automotive engineering.

A Brief History of the 1966 Buick Riviera

The Buick Riviera was introduced in 1963 as Buick's entry into the personal luxury car market. By 1966, the Riviera had evolved into a true icon with its unique styling, featuring the distinctive clamshell hidden headlights and a sleek, fastback roofline. The GS (Gran Sport) package, first offered in 1965, added a performance edge to the Riviera's luxury persona, including a more powerful engine, suspension upgrades, and various cosmetic enhancements. The 1966 model year is particularly sought after for its combination of style, power, and the introduction of performance features that solidified its status as a muscle car with class.

Vehicle Overview

This 1966 Buick Riviera GS, finished in an older Blue paint job (originally Silver Green), maintains its factory air of sophistication and performance. The vehicle’s odometer reads 40,544 miles, but the actual mileage cannot be verified. Its original code "658-B" Black bucket seat interior is well-preserved, providing a glimpse into the luxurious appointments typical of mid-60s Buick interiors. The car rides on 15-inch OE Buick wheels wrapped in new BF Goodrich 255/60 tires, ensuring it has both the look and grip to complement its powerful drivetrain.

Engine and Performance

Under the hood, this Riviera GS features the original numbers-matching 425 V8 engine, enhanced with modern FiTech fuel injection. Known as the "Nailhead," this engine was a hallmark of Buick's performance offerings in the 1960s. The Super Turbine 400 automatic transmission, a staple of Buick's performance models, offers smooth shifts and reliable performance. The vehicle’s power is delivered through headers, dual exhaust, and Borla mufflers, providing a throaty yet refined exhaust note fitting of a classic American V8.

Interior and Comfort

The interior of this Riviera GS is as much about luxury as it is about performance. The original black bucket seats and center console with a tilt steering column create an inviting driver-centric environment. Factory options such as air conditioning (currently needing diagnostic/repair), a driver's side remote mirror, and a power seat highlight the car's luxury pedigree. Despite the wear that comes with age, the interior has been maintained with respect for its original design, preserving the essence of Buick’s vision of a personal luxury car.

Exterior and Styling

The exterior, originally painted in Riviera Silver Green, now wears an older Blue finish that, despite showing some signs of aging, still turns heads. The factory clamshell headlights remain a striking feature, reflecting the innovative design cues of the 1960s. The car's lines are accentuated by the chrome trim and well-preserved body panels, making it a stunning example of Buick’s styling prowess of the era.

Mechanical and Additional Features

Mechanically, this Riviera GS is well-maintained and road-ready. The power brakes (four-wheel drums) and power steering make for a comfortable and confident driving experience. The undercarriage is noted to be very solid, reflecting a well-cared-for life. Newer suspension components, including tie rod ends, sway bar links, shocks, and u-joints, contribute to a smooth and controlled ride.

Factory options such as the clamshell headlights, bucket seats with console, and the tilt steering column are complemented by aftermarket additions like the FiTech fuel injection and the updated exhaust system. Despite the cosmetic aging, the car’s performance capabilities and road presence remain intact.

Final Thoughts

This 1966 Buick Riviera GS is a captivating blend of classic luxury and muscle car performance. It represents a unique period in American automotive history when manufacturers like Buick were not afraid to combine style, comfort, and power. With its numbers-matching engine, original interior, and numerous factory and aftermarket features, this Riviera GS is more than just a car—it’s a rolling piece of art and history.

At PC Classic Cars, we take pride in preserving and presenting timeless classics like this 1966 Buick Riviera GS. Our commitment to quality and passion for classic cars is evident in every vehicle we showcase. Whether you're a seasoned collector or a first-time enthusiast, we strive to provide a trusted and enjoyable experience for all classic car lovers.