Image of 1931 Buick Series 60, Note: These illustrations use artistic license and may differ from actual historical models.

Engine Specifications
Engine:	Straight-8
Displacement:	272.6 cubic inches
Horsepower:	Estimated 90 HP
Torque:	Not available
Compression Ratio:	Not available
Ignition System:	Battery and coil
Cooling System:	Water
Performance Specifications
0-60 Time:	Not available
1/4 Mile Time:	Not available
Top Speed:	75 mph
Transmission and Drive
Drive Type:	Rear wheel drive
Transmission Type:	3-speed manual
Fuel and Efficiency
Fuel System Type:	Carburetor
MPG:	Not available
Dimensions and Brakes
Brakes:	Mechanical drum brakes
Wheelbase:	118 inches
Weight:	3,570 lbs

1931 Buick Series 60: A Refined Straight-Eight Classic

The 1931 Buick Series 60 brought the sound and smoothness of a straight-eight engine to a substantial, carefully finished automobile built for confident touring. Made by Buick, a General Motors division, it occupied the middle of the marque’s range, offering more size and refinement than an entry-level car without reaching the cost and scale of Buick’s largest models.

Its timing gave the car an especially interesting place in history. The Series 60 arrived as the Great Depression sharply reduced demand for new automobiles, yet Buick continued to emphasize engineering, comfort, and quality. One of its most distinctive features was Buick’s overhead-valve straight-eight, a configuration that helped establish the brand’s reputation for smooth, capable performance.

Exterior Style and Body Choices

The Series 60 had the formal proportions associated with the early 1930s: a tall, upright radiator shell, a narrow vertical grille, sweeping front fenders, and long running boards linking the front and rear bodywork. Large headlamps stood proudly beside the radiator, while the long hood gave the car a purposeful profile. Wire wheels and side-mounted spare tires, when fitted, added to its touring-car presence.

Buick offered the Series 60 in several closed and open body styles, including sedans, coupes, and touring-oriented open cars. Exact body offerings could vary by catalog and market, but the four-door sedan was a particularly practical and popular choice. Coupes offered a more personal, compact look, while open models such as roadster or phaeton-style bodies made the most of fair-weather motoring.

Factory color choices varied with body style and production details. Dark shades such as black, deep blue, green, and maroon suited the car’s formal lines, while selected combinations could include contrasting trim or two-tone treatments. On surviving cars, original paint records and body plates are the best guides to an individual car’s factory finish.

Cabin Comfort and Craftsmanship

Inside, the Series 60 was built for long journeys rather than stripped-down utility. Depending on body style and specification, buyers could find cloth or broadcloth upholstery in closed cars and leather in some open models. The dashboard used period-style instruments and polished trim, with a large steering wheel and straightforward controls. Wood or wood-grain finishes, substantial door panels, and generous seating helped create a cabin that felt more substantial than the price-focused cars of the era.

It was not modern luxury in the contemporary sense: sound insulation, climate control, and power accessories were limited or absent. Still, the Buick’s roominess, comfortable seating, and attention to finish made it well suited to family travel and formal use.

Engineering and Historical Importance

The Series 60’s central engineering feature was its 272.6-cubic-inch (about 4.5-liter) inline-eight, rated at approximately 90 horsepower. Its overhead-valve layout was a Buick hallmark. Compared with many flathead engines of the period, the valve-in-head design helped the engine breathe effectively and deliver strong, flexible power for a full-size car.

Power went through a conventional three-speed manual transmission to the rear wheels. Four-wheel mechanical brakes provided stopping power, while the car’s substantial chassis and long wheelbase helped give it a planted character on the road. At roughly 118 inches, the Series 60’s wheelbase was generous for a mid-range model.

The Buick was not a radical styling or technology breakthrough, and it did not introduce a single feature that transformed the entire industry. Its importance lies in how it combined the straight-eight, solid construction, and upscale presentation in a model positioned below Buick’s most expensive offerings. That formula helped Buick compete as a premium American make and reinforced the appeal of smooth, quiet eight-cylinder power.

Performance and Road Manners

Period performance figures vary with body style, gearing, tire condition, and test methods. A sound, correctly tuned Series 60 might reach roughly 70 to 75 mph, while a 0-to-60-mph run could take approximately 24 to 30 seconds. These are estimates, not a guarantee for every car. The Buick’s strength was relaxed progress and usable torque, not quick acceleration by modern standards.

On a smooth road, the long chassis and substantial weight helped the car feel steady and composed. On rough surfaces, its suspension absorbed bumps with the slower, more deliberate motion typical of cars from the period. Narrow tires, a high driving position, and substantial bodywork meant that tight, winding roads required planning and measured steering inputs. Mechanical brakes also demand more anticipation than modern hydraulic systems.

Behind the wheel, the straight-eight is the star. At low speeds it has a deep, even note, becoming more audible under acceleration without the sharp, high-revving character of a modern engine. The steering is unassisted, the controls are physical, and the driver must coordinate the clutch, gear lever, and brakes. That direct involvement is part of the car’s charm, but it also makes a long drive a more active experience.

Living With a 1931 Buick

Today, most Series 60s are maintained as collector cars, used for tours, club events, parades, and local shows. A well-sorted example can cover moderate distances, but it is not an effortless daily driver. Traffic, steep hills, modern highway speeds, and limited braking performance all require consideration.

The mechanical layout is relatively accessible to an owner familiar with prewar cars. Routine work includes ignition and carburetor tuning, lubrication, cooling-system care, brake adjustment, and attention to the electrical system. The engine itself is robust when maintained, but age brings the usual concerns: worn bearings, tired valve gear, cracked or corroded cooling components, and long-neglected chassis parts. Restoration work can be more difficult than routine maintenance, especially when trim, upholstery patterns, or body-specific parts are missing.

Before buying, inspect the frame, body mounts, floor, and lower body panels for corrosion or old repairs. Confirm that the engine has good oil pressure and cooling behavior, and check the brakes carefully. Parts support exists through vintage Buick clubs and specialist suppliers, but availability varies, and some body and interior pieces may need to be repaired or custom-made.

Trivia and Period Context

The Series 60’s straight-eight was not simply a larger version of a small-car engine. Its length and smooth power delivery helped give the Buick the relaxed, substantial character buyers expected from a premium American automobile. That same long engine bay is one reason the car looks so balanced from the side.

The 1931 model year also unfolded during one of the hardest periods in American automotive history. New-car buyers were becoming scarce, and the Buick had to make a strong case through quality and refinement. The Series 60 is not widely known for a headline speed record or a famous endurance victory, but it represents the sort of carefully engineered touring car that kept established manufacturers competing through difficult years.

Common criticisms are practical rather than mysterious: the car is heavy, acceleration is leisurely, and mechanical brakes need more stopping distance and maintenance than modern systems. Some owners also find that restoration costs can quickly exceed the value of a modest-condition example. Its appeal is greatest for enthusiasts who value period engineering and presence over modern convenience.

Collector Values and Rarity

There is no single dependable production figure for every Series 60 body style, and surviving examples are much less common than the model’s original output suggests. As a broad estimate, total Series 60 production may have been in the tens of thousands, perhaps around 25,000 to 35,000 cars. That is a working estimate rather than a confirmed factory total; individual body styles were produced in smaller numbers, and open cars are generally scarcer today.

Collector values depend heavily on body style, originality, condition, and the quality of any restoration. As a broad current-market guide, a project car may bring about $10,000 to $20,000, a usable driver roughly $20,000 to $40,000, and a high-quality restored or especially desirable example around $45,000 to $70,000 or more. These ranges are estimates, and exceptional cars or rare open bodies can fall outside them.

Values for prewar cars have generally been selective rather than uniformly rising. The best documented, correctly restored cars remain attractive, but buyers often discount incomplete projects because parts and labor are expensive. Over time, the Series 60’s historical interest and distinctive straight-eight character may support demand, while condition and authenticity will continue to matter more than simple age.

Why the 1931 Series 60 Still Matters

The 1931 Buick Series 60 combined a smooth overhead-valve straight-eight, substantial construction, formal styling, and a comfortable cabin in a model designed for serious touring. It was not a record-breaking sports car or a technological revolution, but it showed how Buick could deliver refinement and engineering in a range of body styles during a difficult chapter in American history.

More than nine decades later, the Series 60 remains memorable for its presence and its effortless, measured character. It is a reminder that a classic car’s significance is not always about being first or fastest. Sometimes it is about doing the fundamentals exceptionally well.