Details
Though simply cast, promotional models were exquisitely detailed and proportioned, and by 1960, AMT became the main supplier of the pre-assembled model to American car companies. AMT worked most closely with Ford Motor Company and General Motors Corporation, but promo contracts among the model manufacturers seemed to alternate year to year.[4] Shapes of the vehicles were near perfect, though in the 1950s, cellulose acetate, the plastic of choice, was prone to serious warping. In 1960, AMT and some other manufacturers switched to styrene (the brand name being Cycolac, which is actually ABS – or rubbery styrene, more flexible and less brittle) and by 1964, all of the major model car manufacturers had changed over to the new plastic. This solved the problem and styrene models 50 years later still maintain their form. 1961 was a key year for the switchover. For example, some early 1961 Mercury Monterey two door promos were done in acetate while most for that year were done in the new non-warping Cycolac.
Models were molded in different colors, but often painted with actual factory paints, a practice that went back to the 1930s. Also, as with the 1964 Pontiac Grand Prix, the roof was cast in "vinyl" black. Script and emblem details were intricately molded into plastic bodies, grilles and wheels. Hoods did not open, there was no engine detail and no interiors on most models in the 1950s. Thus promos without interior or engine detail were called “coaster models” as opposed to kits with more detail. With the development of kits, however, viewing the interior became practical and as important as exterior appearance. Speedometer numbers could be read on the instrument panels. Horn rings on the steering wheels were accurately depicted brand by brand.
Early on, AMT chassis were often made of metal, but later, they were usually a single piece of plastic with lower engine, exhaust and suspension details molded in a single piece with metal axles fitted through holes in the sides of the plastic. Normally, on the chassis, there were no operating suspension parts. Wheels were one-piece plastic pressed onto the axles. With parts typically "melted" together, forming a permanent bond, promotional models were much more durable than their counterpart assembled kits. Of course, promotionals were simpler and had fewer parts than kits which were a later marketing ploy to enhance sales. Hoods did not normally open and suspension details were molded into the chassis. One exception to this was the 1962 Ford Fairlane and Chevy Impala promos, both of which had an opening hood and a detailed engine. Beyond this, extras were not often built in, but there were occasional surprises like the button on the 1959 "Wide Track" Pontiacs which pushed the wheels inward toward the body to simulate how wide the new cars were.
Seats were often, but not always, part of the single bucket of the interior whereas they were usually separate parts in kits. Many promotional models have survived intact for decades, whereas assembled kits tend to fall apart as the plastic cement deteriorates and small parts fall off, unless they were "solvent welded" with acetone or some other specific solvent for ABSW. AMT commonly molded sales specifications into the chassis, especially on Ford cars. The promo 1962 Ford Galaxie, for example, had thirteen different phrases molded on the chassis, from the very factual "Vacation Volume Trunk-28 Cubic Feet" to the more fanstastical "Galaxie, silent as a secret" or "Enduring elegance with the power to please”.
Beginning collectors may try to simply identify a year of a promo from its license plate, but not all promos followed this tradition. 1970 and 1971 Thunderbirds had no year-stamped license plates, so telling them apart can be difficult.
A few, in the mid-1950s, like the 1954 Buick Roadmaster, 1954 Ford Customline sedan or the 1955 Sunliner, were also offered in remote control versions.[5]
Radios
Also, some models were made with built-in radios, like the 1964–1969 Ford Thunderbird, 1964, 1966 and 1967 Riviera, 1965 Grand Prix, Dynamic 88 and Wildcat, and 1965 and 1966 Impala SS. Others were the 1966 Continental sedan, 1966 and 1967 Mustang fastback, 1967 Ambassador, and Chrysler Turbine Car, but this is not a complete list. These generally do not hold as much value as promos or frictions.
