* No Official Records: Chevrolet did not keep specific production figures for individual body styles, especially for different trim levels.
* Variations: There were multiple series (Bel Air, 150, 210) and trim packages (including special editions) within the 1957 Chevrolet model year, which means the number of convertibles could vary greatly.
* Production Changes: Production numbers might have fluctuated throughout the year due to demand, material availability, and other factors.
Where to Find Information:
* Chevrolet Historian: The best source for information would be the Chevrolet historian, who might have access to internal production records.
* Vehicle Specific Forums: Forums dedicated to the 1957 Chevrolet might have discussions or research from enthusiasts who have compiled data on production numbers.
* Vehicle Identification Number (VIN): If you have a 1957 Chevrolet convertible VIN, a VIN decoder could provide information about the specific model and trim, potentially giving some clues about its rarity.
Remember: Any number you find will likely be an estimate based on various sources, not an official count.
