DeSoto Firesweep I 4-Door Sedan (facelift 1959) 5.9 V8 (295 Hp)


Overall Rating

7.2 / 10
Safety N/A / 5
Not Rated
Engine 4.0 / 5
Value 3.5 / 5
Performance 4.0 / 5
Comfort 4.0 / 5
People\'s Opinion N/A / 5
Not Rated

DeSoto Firesweep:

The DeSoto Firesweep is an automobile that was produced by DeSoto from 1957 through 1959.
The Firesweep was a lower-priced entry that combined a Dodge shell and chassis with a DeSoto bumper and grill. 1957 models were sold only as imports in Canada. While the Firesweep featured DeSoto's signature tailfins, the front clip was based on the Dodge Coronet. The most telling feature was the headlight design, housed under heavily chromed lids typical of Dodge. Firesweep grilles were similar to those on other contemporary DeSoto models....(Read more on Wikipedia)

I 4-Door Sedan (facelift 1959) Overview:

DeSoto Firesweep (I 4-Door Sedan (facelift 1959)). With 529 Nm of torque, it offers ample pulling power. With a weight of 1735 kg, it falls in the mid‑range. Rear‑wheel drive offers dynamic handling and sporty feedback. A four-door car with a separate trunk, ideal for families and daily commuting. With seating for 6, it’s perfect for larger families.

5.9 V8 (295 Hp) Verdict:

Rating 4 stars

Performance Verdict

This powerful 5.9 V8 engine provided robust acceleration and high-speed cruising capabilities, defining the driving experience of the Firesweep.

Fuel Economy

As a large displacement V8 from the era, expect very low fuel efficiency, making it costly to run by modern standards.

Best Use Case: Enthusiast driving, classic car events, leisurely weekend drives.

Pros and Cons:

Pros:

  • • Iconic 1950s American styling and presence
  • • Powerful 5.9L V8 engine for effortless cruising
  • • Spacious and comfortable interior for six passengers
  • • Smooth ride quality over various road conditions
  • • Distinctive and rare classic car appeal

Cons:

  • • Very poor fuel economy by modern standards
  • • Lack of modern safety features (airbags, ABS, etc.)
  • • Soft suspension leads to significant body roll and vague handling
  • • Drum brakes offer limited stopping power
  • • Maintenance and parts can be challenging for a vintage vehicle

Specifications:

Specifications are compared to those of the previous generation(I 4-Door Sedan (facelift 1958): 1957 - 1958).

General:
Brand:DeSoto
Model:Firesweep
Generation:I 4-Door Sedan (facelift 1959)
Modification (Engine):5.9 V8 (295 Hp)
Start of production:1958
End of production:1959
Powertrain Architecture:Internal Combustion engine
Body type:Sedan
Seats:6
Doors:4
Engine:
Power:295 Hp @ 4600 rpm.
Power per litre:49.9 Hp/l
Torque:529 Nm @ 2400 rpm.
Engine displacement:5916
Number of cylinders:8
Engine configuration:V-engine
Number of valves per cylinder:2
Fuel injection system:Carburettor
Engine aspiration:Naturally aspirated engine
Valvetrain:OHV
Engine oil capacity:4.7 l
Coolant:16.1 l
Cylinder Bore:104.65 mm mm
Piston Stroke:85.85 mm mm
Compression ratio:10:1
Performance:
Fuel Type:Petrol (Gasoline)
Weight-to-power ratio:5.9 kg/Hp, 170 Hp/tonne
Weight-to-torque ratio:3.3 kg/Nm, 304.9 Nm/tonne
Space:
Kerb Weight:1735
Fuel tank capacity:76 l
Size:
Ramp-over (brakeover) angle:10.4°
Length:5514 mm mm [15mm more]
Width:1999 mm mm [10mm more]
Height:1443 mm mm [Same height.]
Wheelbase:3099 mm mm [Same wheelbase.]
Front track:1547 mm
Rear (Back) track:1516 mm
Ride height (ground clearance):140 mm
Minimum turning circle (turning diameter):14.2 m [above average]
Approach angle:15°
Departure angle:10°
Powertrain:
Drivetrain ArchitectureThe Internal combustion engine (ICE) drives the rear wheels of the vehicle.
Drive wheelRear wheel drive
Number of gears3
Transmission typeManual
Front brakesDrum, 279 mm [bad for performance and cooling.]
Rear brakesDrum, 279 mm [bad for performance and cooling.]
Steering typeWorm-reduction unit
Front suspensionIndependent torsion bar, double wishbone
Rear suspensionLeaf spring

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