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Buick Roadmaster Convertible

Category:

Description

The Buick Roadmaster Convertible was one of the most luxurious and visually striking models in Buick’s lineup during the 1940s and early 1950s. As part of the prestigious Roadmaster series, the convertible combined open-top motoring with the highest level of comfort, power, and styling that Buick had to offer at the time.

Built on a long wheelbase, the Roadmaster Convertible had a commanding presence on the road. Its design featured sweeping fenders, a wide chrome grille, and elegant body lines that reflected the bold styling trends of the era. The convertible top was fully retractable, allowing drivers and passengers to enjoy open-air driving, while a well-fitted fabric roof provided weather protection when needed.

Under the hood, the Roadmaster Convertible was powered by a robust straight-eight engine. In earlier models, this was the 320 cubic inch overhead-valve inline-eight, known for its smooth power delivery and excellent torque. In later years, particularly post-1949, the Roadmaster received Buick’s new V8 engines, which offered improved performance and efficiency. Most models were equipped with the Dynaflow automatic transmission, a Buick innovation that provided a seamless and refined driving experience.

The interior of the Roadmaster Convertible was richly appointed. Leather seats, chrome and woodgrain accents, and a full set of dashboard instruments created an atmosphere of sophistication and comfort. Amenities such as a push-button radio, electric clock, and power windows were available, enhancing the sense of modern luxury.

Driving a Roadmaster Convertible was as much about prestige as it was about performance. The ride was smooth and quiet, thanks to Buick’s advanced suspension systems and sound insulation. The car’s size and power made it well-suited for long-distance touring, and its open-top design made it particularly popular in warmer climates and among buyers who wanted both style and comfort.

Today, the Buick Roadmaster Convertible is a prized classic, admired for its graceful design, strong engineering, and status as a symbol of postwar American luxury. Well-preserved or fully restored examples are highly sought after by collectors and vintage car enthusiasts around the world.

Additional information

Manufacturer

Buick

Country

USA

Production Started

1958

Production Stopped

1958

Vehicle Type

Bodystyle

Carbio, convertible

Number of Doors

2

Number of Seats

6

Top Speed

118 mph (190 km/h)

0-60 mph (0-100 kph)

Power

221 / 300 / 296 @ 4600 rpm

Torque

544 / 401 @ 3200 rpm

Engine Manufacturer

Buick

Engine

V8

Engine Location

Front

Engine Displacement

5965 cc (362.3 cu in)

Valvetrain

OHV

Valves per Cylinder

2

Bore / Stroke

104.8 x 86.4 mm (4.126 x 3.402 in)

Compression Ratio

10:1

Cooling System

Water

Charging System

Fuel Type

Petrol

Fuel System

Carburator

Aspiration

Normal

Fuel Capacity

Drive

Rear

Transmission

Steering

Front Brakes

Rear Brakes

Front Suspension

Rear Suspension

Tyre Dimensions

Chassis

Weight

2100 kg (4630 lb)

Length

Width

Height

Wheelbase

3238 mm (127.5 in)