How to tell apart the IM1-1, Crown and LeBaron

Coupé 57 (photo prise à Sonora, CA)This page applies to 1957 models, the ones I know best, and possibly to the 1958s, which are closely related to models of the year before. If you examine a ’57, the pointers below will let you identify it precisely, even if its owner assures you it is a Southampton (all models without doorposts may be called Southamptons on paper, which is the only place where this name occurs!).

There is no difference from one model to another with respect to engine, transmission, drive train and body dies.

Remember that with a glance at the data plate on the radiator brace under the hood you can tell if the car is a "base" or Crown Imperial. .



"base" (IM1-1)

Crown (IM1-2)

LeBaron (IM1-4)

Script on side of front fender

"Imperial" "Imperial" with a crown over the second "i" "LeBaron" medallion

Roof gutters

plain, painted covered with stainless-steel molding like Crown

Molding over headlights

chromed-steel "T" like "base," but the "T" is surmounted by a gold crown like Crown

Wheel covers

Go to "57 wheelcover"

Go to "57 wheelcover"

Go to "57 wheelcover"

Front seat trim

Lower part in painted plastic, no trim  (see pics below) stainless steel above & below + return strip. Chromed pot-metal "arrow" on 2-door models, "handle" on 4-doors like Crown

Front-door armrests

plain, no storage box (see pics below) Hinged top disclosing storage box. (see pic below) Lid fastener added in ’58 like Crown

Upper door panels

plain vinyl (see pics below) vinyl heat-stamped with vertical ribs  (see pic below) like Crown

Main door panels

IM1-1 door panelsThe "trapezoid" area (surrounded  with the molding) is covered with fabric or vinyl The "trapezoid" area (surrounded with the molding) is covered with diamond shape aluminium (or diamond shape plastic as back of instruments on my convertible). like Crown

Lower door panels

plain (vinyl), see pic above 2 stainless-steel moldings surround a panel of ribbed aluminum like Crown


- fabric (solid or patterned)
- fabric + vinyl leatherette
- fabric w/metallic thread + leather
- all leather
broadcloth in solid colors: gray, blue, green or brown.

Pictures from "Prestige" catalogue showing door panels and upholstery

57panbas.jpg (19156 octets) IM1-1sedan interior in medium green Snowflake Brocade and dark green fabric.

57panncr.jpg (23364 octets)Crown interior in medium gray ripple Boucle and light gray metallic leather.
Compare seat and door decoration.


Back-seat smokers’ equipment

One ashtray in back of front seat, no lighter (Two ashtrays, two lighters in side die-cast armrests on 2 dr HT, pics below) Two ashtrays, two lighters in side armrests like Crown

Front power seat

option standard standard

Power windows


This IM1-1 2dr HT has manual windows but power seat ...

standard standard

Day/night interior rear-view mirror

option standard standard

Whitewall tires

option option standard

Courtesy mirror

option standard standard

Rear window defroster

option standard (except convertible) standard

Frame license plate

option standard standard

Dual headlights

option option (no charge) option (no charge)
Items not mentioned are either standard (power steering and brakes, clock, back-up lights),or an option on any series (radio, air conditioning, tinted windows etc...)


Interior of 1957 Crown sedan. The front seat still has its original plastic protective covers!




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