The DeSoto Fireflite Four-Door Hardtop with the 5.9 V8 (295 hp) and PowerFlite automatic transmission represents a significant offering from the 1959 and 1960 model years. Positioned as a premium full-size automobile, the Fireflite aimed to blend performance with comfort and style during the tailfin era of American automotive design. This particular configuration sat towards the higher end of the Fireflite lineup, offering a substantial step up in power compared to the base engine options. It was a key model for DeSoto as the brand attempted to maintain its market share against increasingly competitive rivals like Ford, Chevrolet, and Plymouth.
Technical Specifications
| Brand | DeSoto |
| Model | Fireflite |
| Generation | Fireflite Four-Door Hardtop |
| Type (Engine) | 5.9 V8 (295 Hp) PowerFlite |
| Start of production | 1959 |
| End of production | 1960 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 6 |
| Doors | 4 |
| 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 |
| Trunk (boot) space – maximum | 929 l / 32.81 cu. ft. |
| Fuel tank capacity | 87 l / 22.98 US gal | 19.14 UK gal |
| Length | 5471 mm / 215.39 in. |
| Width | 2017 mm / 79.41 in. |
| Height | 1397 mm / 55 in. |
| Wheelbase | 3099 mm / 122.01 in. |
| Front track | 1549 mm / 60.98 in. |
| Rear (Back) track | 1516 mm / 59.69 in. |
| Front overhang | 881 mm / 34.69 in. |
| Rear overhang | 1491 mm / 58.7 in. |
| Ride height (ground clearance) | 132 mm / 5.2 in. |
| Minimum turning circle (turning diameter) | 14.3 m / 46.92 ft. |
| Approach angle | 15.6° |
| Departure angle | 10.4° |
| Ramp-over (brakeover) angle | 12.4° |
| 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 | 2 gears, automatic transmission PowerFlite |
| 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 |
Powertrain & Engine Architecture
The heart of this Fireflite variant is the DeSoto 5.9-liter (361 cubic inch) V8 engine. This engine, designated with various codes depending on specific calibration, was a robust and relatively simple design featuring overhead valve (OHV) valvetrain and a cast iron block. The 295 horsepower output was achieved through a four-barrel carburetor, a 10:1 compression ratio, and a carefully tuned exhaust system. The engine’s design prioritized low-end torque, making it well-suited for the substantial weight of the Fireflite. The PowerFlite automatic transmission, a two-speed unit, was a key component of the package. While not as sophisticated as some contemporary automatics, the PowerFlite was known for its durability and smooth operation. It featured a torque converter for smooth launches and a relatively simple planetary gearset for gear changes.
Driving Characteristics
Behind the wheel, the 1959-1960 Fireflite 5.9 V8 with the PowerFlite transmission delivered a driving experience typical of the era. Acceleration was brisk, but not particularly quick by modern standards. The two-speed automatic transmission meant that gear changes were relatively infrequent, and the engine often operated at higher RPMs during cruising. The emphasis was on comfortable cruising and effortless passing power rather than outright performance. Compared to the Fireflite models equipped with the smaller, less powerful engines, this variant offered a noticeable improvement in responsiveness. However, it didn’t possess the sporty character of some competitors offering manual transmissions or more advanced automatic options.
Equipment & Trim Levels
The Fireflite Four-Door Hardtop was a well-appointed vehicle for its time. Standard features included a spacious interior with comfortable bench seats, often upholstered in cloth and vinyl. The dashboard featured a prominent instrument cluster with gauges for speed, fuel level, temperature, and oil pressure. Power steering and power brakes were often included as standard equipment, enhancing the driving experience. Optional extras included air conditioning, a radio, whitewall tires, and various trim packages that added chrome accents and luxurious interior materials. The hardtop body style, with its pillarless design, was considered particularly stylish and upscale.
Chassis & Braking
The Fireflite rode on a sturdy chassis featuring independent torsion bar suspension in the front and leaf springs in the rear. This suspension setup provided a comfortable ride, although it wasn’t particularly sporty. Braking was handled by drum brakes on all four wheels. While adequate for the time, the drum brakes lacked the stopping power and fade resistance of disc brakes. Steering was accomplished through a worm-reduction unit, which provided a relatively indirect steering feel.
Market Reception & Comparison
The 1959-1960 DeSoto Fireflite with the 5.9 V8 and PowerFlite transmission received generally positive reviews from automotive critics. It was praised for its comfortable ride, spacious interior, and powerful engine. However, some critics noted that the two-speed automatic transmission was somewhat outdated compared to the more advanced automatics offered by competitors. Fuel economy was also a concern, as was typical for large American cars of the era. Compared to other Fireflite trims, this variant offered a significant performance upgrade, but at a higher price point. It appealed to buyers who wanted a comfortable and stylish full-size car with ample power for highway cruising.
Legacy
The DeSoto brand was discontinued in 1961, making the 1959-1960 Fireflite models among the last DeSotos ever produced. As a result, these cars have become increasingly collectible among enthusiasts. The 5.9 V8 engine and PowerFlite transmission are generally considered to be reliable and durable, although parts availability can be a challenge. Today, well-maintained examples of the Fireflite Four-Door Hardtop are prized for their classic styling, comfortable ride, and historical significance. They represent a bygone era of American automotive design and engineering.
