The DeSoto Firesweep I Station Wagon, specifically the 1959 facelift model equipped with the 5.9-liter V8 “Shopper” engine and TorqueFlite 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
| Brand | DeSoto |
| Model | Firesweep |
| Generation | Firesweep I Station Wagon (facelift 1959) |
| Type (Engine) | Shopper 5.9 V8 (295 Hp) TorqueFlite |
| Start of production | 1958 |
| End of production | 1959 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 6 |
| Doors | 5 |
| Fuel Type | Petrol (Gasoline) |
| Power | 295 Hp @ 4600 rpm |
| Power per litre | 49.9 Hp/l |
| Torque | 529 Nm @ 2400 rpm / 390.17 lb.-ft. @ 2400 rpm |
| Engine displacement | 5916 cm3 / 361.02 cu. in. |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 104.65 mm / 4.12 in. |
| Piston Stroke | 85.85 mm / 3.38 in. |
| Compression ratio | 10:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Carburettor |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | OHV |
| Engine oil capacity | 4.7 l / 4.97 US qt | 4.14 UK qt |
| Coolant | 16.1 l / 17.01 US qt | 14.17 UK qt |
| Fuel tank capacity | 76 l / 20.08 US gal | 16.72 UK gal |
| Length | 5489 mm / 216.1 in. |
| Width | 1999 mm / 78.7 in. |
| Height | 1450 mm / 57.09 in. |
| Wheelbase | 3099 mm / 122.01 in. |
| Front track | 1547 mm / 60.91 in. |
| Rear (Back) track | 1516 mm / 59.69 in. |
| Minimum turning circle (turning diameter) | 14.2 m / 46.59 ft. |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 3 gears, automatic transmission TorqueFlite |
| Front suspension | Independent torsion bar, double wishbone |
| Rear suspension | Leaf spring |
| Front brakes | Drum, 279 mm |
| Rear brakes | Drum, 279 mm |
| Steering type | Worm-reduction unit |
Introduction
The DeSoto Firesweep was introduced in 1958 as a replacement for the DeSoto Fireside. The 1959 model year saw a significant facelift, featuring more prominent tailfins and revised trim. The station wagon body style, a popular choice for American families, offered ample cargo space and seating for up to six passengers. The “Shopper” 5.9 V8, paired with the TorqueFlite automatic, was a key component of this variant, aiming to provide a balance between performance and ease of driving. It was built on the Chrysler A-body platform, shared with other Chrysler Corporation vehicles.
Powertrain & Engine Architecture
The heart of the 1959 Firesweep Station Wagon was the DeSoto 5.9-liter (361 cubic inch) V8 engine, internally known as the “Shopper” variant. This engine utilized a cast iron block and cylinder heads, with a 10:1 compression ratio. It featured a carbureted fuel system, typical for the era, and an overhead valve (OHV) valvetrain. The engine produced 295 horsepower at 4600 rpm and 529 Nm (390 lb-ft) of torque at 2400 rpm. The TorqueFlite automatic transmission was a three-speed unit, known for its smoothness and durability. It was a fully automatic transmission, meaning it didn’t require manual gear selection, making it ideal for comfortable cruising and city driving.
Driving Characteristics
The combination of the 5.9-liter V8 and the TorqueFlite automatic provided a reasonably spirited driving experience for the time. While not as quick as some of the higher-performance DeSoto models, the Firesweep Station Wagon offered ample power for highway passing and merging. The TorqueFlite transmission, while smooth, wasn’t known for its aggressive shift points. This resulted in a more relaxed driving style, prioritizing comfort over outright acceleration. Compared to the manual transmission options available on other DeSoto models, the automatic version sacrificed some responsiveness but gained in ease of use. The gear ratios were optimized for cruising, making it a comfortable long-distance vehicle.
Equipment & Trim Levels
The Firesweep Station Wagon, in its 5.9 V8 automatic configuration, was generally considered a mid-range trim level. Standard features included a spacious interior with cloth and vinyl upholstery, a full-width bench seat, and basic instrumentation. Power steering and power brakes were often included, though not always standard. Optional extras included air conditioning, a radio, and whitewall tires. The interior trim was typically more subdued than the higher-end Adventurer models, focusing on practicality and durability. The dashboard featured a straightforward layout with a speedometer, fuel gauge, and temperature gauge.
Chassis & Braking
The Firesweep Station Wagon utilized a body-on-frame construction, common for American cars of the era. The front suspension featured an independent torsion bar setup with double wishbones, providing a relatively comfortable ride. The rear suspension employed leaf springs, which were robust but could result in a somewhat bumpy ride, especially when the vehicle was fully loaded. Braking was accomplished via drum brakes on all four wheels, measuring 279mm in diameter. While adequate for the time, the drum brakes lacked the stopping power and fade resistance of modern disc brakes. Steering was handled by a worm-reduction unit, which provided a relatively indirect steering feel.
Market Reception & Comparison
The 1959 DeSoto Firesweep Station Wagon received mixed reviews. Critics praised its spacious interior, comfortable ride, and V8 power. However, some noted its somewhat dated styling and the lack of modern features compared to some of its competitors. Compared to other station wagons of the time, such as the Chevrolet Nomad or the Ford Country Squire, the Firesweep offered a similar level of space and practicality, but with a slightly more upscale image. Fuel economy was typical for a large American car of the era, averaging around 15-18 miles per gallon. Reliability was generally good, though the carbureted engine required regular maintenance.
Legacy
The DeSoto Firesweep, and the DeSoto brand as a whole, was discontinued after 1961 due to declining sales and internal competition within the Chrysler Corporation. Today, the 1959 Firesweep Station Wagon is a relatively rare and collectible classic car. The 5.9-liter V8 engine, while not particularly fuel-efficient by modern standards, is known for its durability and relatively simple mechanical design. Parts availability can be a challenge, but a dedicated community of DeSoto enthusiasts exists to support restoration efforts. The TorqueFlite transmission, if properly maintained, remains a reliable unit. The Firesweep represents a snapshot of American automotive design and engineering from the late 1950s, a time of large cars, bold styling, and V8 power.
