The '56 Imperials gained modest tailfins plus a slightly longer wheelbase and length. Power was supplied by Chrysler's Hemi V-8, with a displacement and power boost for '56. Also that year, a four-door hardtop sedan was added to the line in common with other Chrysler divisions.
Pluses of the 1955-1956 Imperial:
- Fine styling
- Good quality control
- Great road car
- One of the more affordable luxury Milestones
- Thirsty
- Handling and braking not up to the horsepower
4d sdn, 7,840; Newport 2d htp, 3,418
Production of the 1956 Imperial:
4d sdn, 6,821; Southampton 2d htp, 2,094; Southampton 4d htp, 1,543
Specifications of the 1955-1956 Imperial:
Length, inches: 223.0 (1955), 226.0 (1956)
Wheelbase, inches: 130 (1955), 133.0 (1956)
Weight, pounds: 4,565-4,680
Price, new: $4,483-$5,225 (U.S.)
Engines for the 1955-1956 Imperial:
| Type | Size | Horsepower | Years |
| ohv V-8 | 331 cid | 250 | 1955 |
| ohv V-8 | 354 cid | 280 | 1956 |
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