1958-1959 DeSoto Firesweep I Station Wagon (facelift ) Shopper 5.9 V8 (295 Hp) PowerFlite

The DeSoto Firesweep I Station Wagon, specifically the 1959 facelift model equipped with the 5.9-liter V8 “Shopper” engine and PowerFlite automatic transmission, represented a significant offering in the American station wagon market. Produced for a limited time, from 1958 to 1959, it was positioned as a family-oriented vehicle offering a blend of style, space, and V8 power. This variant occupied a middle ground within the Firesweep lineup, offering more performance than the base models but falling short of the more luxurious and powerful DeSoto Adventurer.

Technical Specifications

Introduction

The DeSoto Firesweep was introduced in 1958 as a replacement for the DeSoto Fireside. The 1959 model year saw a significant facelift, featuring revised styling cues and a more modern appearance. The station wagon body style, often referred to as the “Shopper” model, was a popular choice for families needing ample cargo space. The 5.9-liter V8 engine, producing 295 horsepower, was a key selling point, offering strong performance for its time. This particular configuration, paired with the two-speed PowerFlite automatic transmission, aimed to provide a comfortable and convenient driving experience.

Powertrain & Engine Architecture

The heart of the 1959 Firesweep Shopper was the DeSoto 5.9-liter (361 cubic inch) V8 engine. This engine, part of the Chrysler B-series engine family, utilized a cast iron block and cylinder heads. It featured a 10:1 compression ratio and employed a single carburetor for fuel delivery. The overhead valve (OHV) valvetrain, with two valves per cylinder, was a common design for the era. The PowerFlite automatic transmission was a two-speed unit, known for its smoothness but relatively simple design. It lacked the sophistication of some contemporary automatic transmissions, but it was reliable and well-suited to the engine’s torque characteristics. The PowerFlite’s gear ratios were optimized for cruising, prioritizing comfort over outright acceleration.

Driving Characteristics

The 1959 DeSoto Firesweep 5.9L Automatic offered a comfortable, if not particularly sporty, driving experience. The 295 horsepower engine provided ample power for highway cruising and passing maneuvers. However, the two-speed PowerFlite transmission limited acceleration compared to models equipped with a manual transmission or the more advanced TorqueFlite automatic. The rear-wheel-drive layout and relatively soft suspension provided a comfortable ride, but handling was not a strong point. The car’s substantial weight (approximately 4,000 lbs) contributed to a feeling of bulkiness, especially when cornering. Compared to other DeSoto models, like those with the larger 6.3L engine, this variant offered a balance between performance and fuel economy.

Equipment & Trim Levels

The Firesweep Shopper station wagon came reasonably well-equipped for the late 1950s. Standard features typically included a spacious interior with seating for six passengers, a full-length vinyl-covered cargo area, and a heater. Interior upholstery was generally cloth and vinyl, with color options varying depending on the exterior paint scheme. Optional extras included power steering, power brakes, a radio, and whitewall tires. The dashboard featured a straightforward layout with basic instrumentation, including a speedometer, fuel gauge, and temperature gauge. The trim level was generally considered mid-range within the Firesweep lineup, offering a good value proposition for families.

Chassis & Braking

The Firesweep I Station Wagon utilized a body-on-frame construction, typical of American cars of the period. The front suspension employed an independent torsion bar and double wishbone setup, providing a relatively comfortable ride. The rear suspension consisted of leaf springs, which were robust but less refined than the front suspension. Braking was accomplished via drum brakes on all four wheels, measuring 279mm in diameter. While adequate for the car’s weight and performance, the drum brakes lacked the stopping power of disc brakes. Steering was handled by a worm-reduction unit, which provided a relatively indirect steering feel.

Market Reception & Comparison

The 1959 DeSoto Firesweep, including the 5.9L Automatic variant, received mixed reviews from automotive critics. While the styling was generally praised, the car was often criticized for its lack of modern features and its relatively high price compared to competitors like Ford and Chevrolet. The PowerFlite transmission was seen as a weakness, particularly by those seeking more spirited performance. Fuel economy was also a concern, typical of large American cars of the era. Compared to other Firesweep trims, the 5.9L Automatic offered a good balance of power and affordability, appealing to families who prioritized comfort and convenience over outright performance.

Legacy

The DeSoto Firesweep, and the DeSoto brand as a whole, had a relatively short lifespan. Production ceased in 1961 due to declining sales and internal restructuring within Chrysler Corporation. Today, the 1959 Firesweep Station Wagon is a sought-after classic car, particularly among collectors of vintage American automobiles. The 5.9-liter V8 engine and PowerFlite transmission are generally considered reliable, although parts availability can be a challenge. Well-maintained examples command a premium in the used car market, representing a nostalgic reminder of a bygone era of American automotive design and engineering. The simplicity of the powertrain makes it relatively easy to maintain for those with mechanical skills, contributing to its enduring appeal.