Today’s installment of the Imperial series is our seventh and coincides with the seventh generation Imperial. Officially it was the second-generation car under the new Imperial marque, an independent arm of Chrysler launched in 1955 to compete with the likes of Lincoln and Cadillac. The move to independence brought with it a resurgence of interest in the brand, as the Exner styled ’55 and ’56 Imperials stood out from the rest of Chrysler’s offerings visually, and in terms of quality and luxury. We pick up in 1957 when it was time for another new Imperial.
The Imperial launched in 1955 used the same platform as the New Yorker with a four-inch extension, but for 1957 Chrysler granted Imperial its own platform. With a 129-inch wheelbase, new Imperials had four fewer inches between the wheels than in 1956. Unnamed at the time, Chrysler would assign the D-body name to the platform in 1964. The platform was notable for its very sturdy body-on-frame construction, which persisted on Imperial while other Chrysler offerings moved to unibody construction from 1960 onward.
Overall length shrunk about five inches for 1957, at 224.4″ overall. However, Imperial was over two inches wider at 81.2 inches (78.8″ previously). Imperial was notably wider than other Chrysler cars: The New Yorker was 78.8 inches wide in 1957, and 219 inches long. Coming with width meant Imperial had more shoulder room than any other contemporary car, with 64 inches at the front, and 62 at the rear. It was the start of the lower, wider era, as 1956’s overall height of 61.5 inches dropped to 57.5 inches in 1957.
That year was also the start of some road-hugging weight for Imperial, as the previous generation’s hefty 4,800 or so pounds was the starting point for the 1957 Imperial. Depending on year and trim, weight ballooned up to 5,500 pounds. Suitably to cope with all that extra weight, the Imperial’s Hemi V8 was increased from its 354 cubic-inch (5.8L) to 392 cubic inches (6.4L). Dual exhaust was standard on all Imperials. The transmission was the same three-speed TorqueFlite A488 as the prior year.
Chrysler introduced a new suspension design on the ’57 Imperial, Torsion-Aire. A torsion bar design, the suspension helped reduce unsprung weight and moved the center of gravity lower, and toward the rear.
The rear suspension was multi-leaf, and the combination promised better handling and a smoother ride. It was an unusual setup, as typically a torsion bar setup would have coil springs at the rear. Chrysler’s torsion bar suspension was a first for a major American manufacturer, and Chrysler spread it across its entire lineup for 1957.
The generous suspension gifting was another first for cars in the lower and middle segments of the market. Packard implemented a complicated four-wheel torsion bar on its pricier models in 1955, but that was the torsion bar’s only other usage by a contemporary American manufacturer. Elsewhere on the advancement front, Chrysler used curved side glass in the Imperial – a first in an American production car.
Imperial wore all-new styling in 1957, as Virgil Exner (with assistance from Elwood Engel) debuted the “Forward Look.” Smaller single (or double) headlamps replaced the larger lamps of the prior year and rested within a more streamlined visage that saw finer use of chrome detailing and more of it. Cadillac would debut a front end similar to the ’57 Imperial in 1959. Worth an aside, only a select few of the ’57 Imperials received single headlamps, as it seems quad headlamps were not yet legal in all areas. Imperial advertised both headlamp types within its literature.
The rest of the new Imperial was more flashy and Fifties, and a bit less formal looking. For the first time, rear fender lines were completely flush with the Imperial’s body. Block lettering from the year before was replaced by large, flowery cursive “Imperial” script on fenders and at the rear. Tail lamps were now integrated into the much larger rear fins, which wore rocket-inspired trim detailing. Rocket details continued at the large chrome bumper with dual ovoid stamping. And in that most Fifties of tropes, the trunk lid had an optional simulated continental kit, painted in matching or contrasting color. Chrysler called it FliteSweep, and customers loved the look so much the option spread to lesser Chrysler vehicles afterward.
The newly modernized Imperial was built at Jefferson Avenue Assembly, as it had been before. 1957 saw the loss of a long-wheelbase Imperial, as all Chrysler-built cars were the same overall length. Imperials’ former C-series numbering system went by the wayside and was replaced by Series IMI-, in numbers 1, 2, or 4. Base models (IMI-1) started at $4,740 ($47,500 adj.), while IMI-2 was the Imperial Crown at $5,400 ($54,100 adj.) for a four-door. IMI-4 was the Imperial LeBaron and was priced at $5,740 ($57.500 adj.).
Two-door bodies were available in hardtop or convertible guises (convertible a first for a factory-made Imperial), and four doors were either sedan or hardtop. Hardtops had no pillars and were called Southampton regardless of the number of doors unless they were a LeBaron. Trims became more complicated without the long wheelbase: The Imperial Crown was no longer the aspirational top model as it had been for years, but one might still purchase an Imperial Crown Southampton as an upper-middle Imperial.
The flagship for 1957 was the Imperial LeBaron, which recalled the name of the coachbuilder that built it some decades before. Indeed the advertising for the Imperial LeBaron even referenced the “custom-built creations” one could no longer purchase, and stated the LeBaron would only be available in small numbers. Also built in very small numbers by Ghia was the ’57 Imperial Crown limousine. Strictly a custom-order vehicle, it was not advertised with the Imperial lineup. Imperial Crown used the 1958 grille in 1957, and 36 cars were sold at the shocking ask of $12,000, or over $120,000 adjusted. That’s a car worth covering separately.
Imperial’s sales soared as the all-new styling in the company’s third model year made other luxury cars look stodgy and dated. 1957 would be the best-ever year sales for any Imperial, at 37,593. Though it paled in comparison to the sales of more established luxury marques like Cadillac, Imperial made very quick inroads into the market. But it was not without cost, as the redesign was hastily done and quality control suffered over the superb finishing of the 1955-1956 models. The yet-named D-body was a long-lived one under the Imperial, so we’ll be back with more on its developments next time.
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