Cadillac offered two Fleetwood models: Series Sixty Special and the 75 Fleetwood.
The Sixty Special Fleetwood now had 12 vertical louvers at the rear lower side of the back fenders and continued with a Fleetwood script on the rear deck. The special "glamour" upholstery used in the 60S was similar to the metallic thread fabric with genuine leather trim combination used in the Series 62 Coupe DeVille. Standard equipment included:
| Model Number | Body Style | Doors | Model | Seating | Factory Price | Shipping Weight | Production Total |
|---|---|---|---|---|---|---|---|
| 55-60 | 6019X | 4-door | Sedan | 6 | 4728 | 4545 | 18,300 |
| Type | V-8: Overhead valves |
| Block | Cast iron block |
| Displacement | 331 cubic inches |
| Bore and stroke | 3.81 x 3.63 inches |
| Compression ratio | 9.0:1 |
| Brake horsepower | 250 @ 4600 rpm |
| Bearings | Five main bearings |
| Valve lifters | Hydraulic valve lifters |
| Carburetors | Carter WCFB four-barrel, Models 2355S, 2354S, 2185S, 2186S, 2266S, 2267S, and 2255 - also - Rochester 4GC four-barrel, (Less air conditioning) Model 7007970; (With air conditioning) Model 7007971. |
The trim on the Fleetwood long-wheelbase models was distinctive from other lines. A horizontal rub molding ran from the front parking light housings to the trailing edge of the front door and stopped. A full-length vertical air-slot style fenderbreak molding was placed directly behind the rear gap of the back doors. The two moldings did not meet at right angles. Other styling alterations, such as grille design changes, conformed to the new 1955 themes. A Fleetwood scripts appeared on the deck lid. The high headroom appearance was seen again. Both models continued to feature auxiliary seats for extra passenger carrying capacity and the Imperial sedan-limousine had an hydraulically operated glass driver's partition.
| 55-75 | 7523X | 4-door | Sedan | 7 | 6187 | 5020 | 1,075 |
|---|---|---|---|---|---|---|---|
| 55-75 | 7533X | 4-door | Imperial Sedan | 8 | 6402 | 5113 | 841 |
| 55-86 | 8680S | - | Commercial chassis | - | - | - | 1,975 |
NOTE: The commercial chassis featured a 158 inch wheelbase and was provided to makers of professional cars for construction of funeral cars and ambulances, etc.
| Feature | Standard Engine | Optional Engine |
|---|---|---|
| Type | V-8: Overhead valves | |
| Block | Cast iron block | |
| Displacement | 331 cubic inches | |
| Bore and stroke | 3.81 x 3.63 inches | |
| Compression ratio | 9.0:1 | 9.1:1 |
| Brake horsepower | 250 @ 4600 rpm | 270 @ 4600 rpm |
| Main bearings | Five | |
| Valve lifters | Hydraulic | |
| Carburetors | Carter WCFB four-barrel, Models 2355S, 2354S, 2185S, 2186S, 2266S, 2267S, and 2255 - also - Rochester 4GC four-barrel, (Less air conditioning) Model 7007970; (With air conditioning) Model 7007971. | Two (2) Rochester 4GC four-barrels front: Model 7007240 rear, without air conditioning: Model 7007240 rear, with air conditioning: Model 7007241 |
The Eldorado engine was optional in Series 75 Fleetwood models at extra cost.
| Feature | Series 60 Fleetwood | Series 75 Fleetwood |
|---|---|---|
| Wheelbase | 133 inches | 149.8 inches |
| Overall Length | 227.3 inches | 237.1 inches |
| Front Tread | 60 inches | 60 inches |
| Rear Tread | 63.1 inches | 63.1 inches |
| Tires | 8.00 x 15 | 8.20 x 15 six-ply |
| Exhausts | Standard dual exhausts | |
| Standard Rear axle ratio | 3.36:1 | |
| Optional Rear axle ratio | 3.07:1 | |
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