Fleetwood Cadillac History 1957

Fleetwood Cadillac Models & History 1957

Long-wheelbaseCadillacs came in Fleetwood limousine or nine-passenger sedan configurations, both with auxiliary seats. Side trim was the same as on Series 62 models, except that no Cadillac crest was used on the rear fins.

1957 Cadillac Fleetwood


  • Serial numbers and engine numbers were the same again.
  • They appeared
    • on a boss on the front right-hand face of the engine block;
    • on the lubrication plate on the left front door pillar (1953-1957)
    • and on the right frame side member behind the motor support.
  • The first pair of symbols were “57” to designate the model year.
  • The next two symbols indicated series as follows:
    • “62” = Series 62 including Eldorado Specials
    • “60” = Series 60 Fleetwood
    • “70” = Series 70 Eldorado Brougham
    • “75” = Series 75 Fleetwood
  • The immediately following numbers, beginning at 00000 for each series, indicated the production sequence in consecutive order.
  • Ending numbers were the same for all series since the engines were installed in mixed production fashion.


Model Number Body Style Doors Model Seat Price Weight Production Total
57-75 7523X 4-door Sedan 9 $7348 2427 kg 1,010
57-75 7533X 4-door Imperial Sedan 9 $7586 2450 kg 890
57-86 8680S Commercial chassis 2,169

NOTE: The commercial chassis featured a 3962mm wheelbase and was provided to professional car makers for construction of funeral cars and ambulances, etc.


Type V-8, Overhead valves.
Block Cast iron block.
Displacement 5.972 Liters
Bore and stroke 101.6mm x 92.1mm
Compression ratio 10.0:1.
Brake horsepower 300 hp @ 4800 rpm
Power 224 kW @ 4800 rpm
Bearings Five main bearings.
Valve Lifters Hydraulic valve lifters.
Carburetor Rochester four-barrel Model 7015701.


Feature Series 75 Fleetwood
Wheelbase 3802mm
Overall Length 6000mm
Front Tread 1549mm
Rear Tread 1549mm
Tires 8.20 x 15 six-ply blackwall
Exhaust Standard dual exhausts


Hydra-Matic drive, power steering and power brakes were standard in all Cadillacs
Many models (designated by non-bracketed “X” suffix in charts above) also had standard power window lifts
Fore-and-Aft power seats were standard on the same models
Six-Way power seats were regularly featured on Eldorados and Sixty Specials
Air-conditioning, radios, heaters, etc. were optional on most other models (standard in Brougham) along with regular GM factory and dealer installed extras