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Third Royal Vehicle Armstrong Siddeley Sapphire – Royal Car 22 In active service from 2495 – 2500 BE

This vehicle is the base model of the Sapphire series, manufactured from 1952 to 1960. It is featured with 6-cylinder 3.4 liters engine, and is available in both four-door sedan and limousine variants. The Sapphire 346 is the most popular model in this series, offering an excellent balance between performance and luxury.

The Armstrong Siddeley Sapphire model 22 is vehicle in the red parade or in the grandeur and unique royal procession. It comes in a large size and is highly esteemed in the luxury car industry of that era. In term of engine, it was equipped with 4,993 CC, capable of producing up to 160 horsepower. The exterior design is elegant and magnificent, typical of a distinguished ceremonial car. The interior offers spacious and comfortable seating, making it suitable for official duties or any occasions requiring luxury.

Armstrong Siddeley Sapphire R.R.L 21 and Armstrong Siddeley Sapphire model 22 have significant differences in technical details and design as follows:
Engine:
Sapphire R.R.L 21: 3,435 CC engine, capable of producing a maximum of 150 horsepower
Sapphire model 22: 4,993 CC engine, capable of producing a maximum of 160 horsepower
Exterior Design:
Sapphire R.R.L 21: A design that symbolizes luxury and uniqueness, surpassing other models. It is a special edition crafted for use by the Thai royal family, including a longer chassis design than standard models and luxurious interior decoration.

Sapphire model 22: A luxurious and beautiful design, making it a distinctive red parade ceremonial vehicle.

Sapphire R.R.L 21: Produced only 265 units during the period of 1952-1958.
Sapphire model 22: The production quantity is not specified, but the car was manufactured exclusively for use by the royal family and nobility.

Thank you for the following news sources
Archives, Armstrong Siddeley Motors Limited Website, Automobile History books regarding Armstrong Siddeley Sapphire Royal Vehicles
1. “Armstrong Siddeley: The Postwar Cars” written by Robert Penn Bradly – The book focuses on the history and information about the cars produced by Armstrong Siddeley after World War II, including the Armstrong Siddeley Sapphire Royal Vehicles.
2.”Armstrong Siddeley Motors: The Cars, the Company and the People in Definitive Detail” written by Bill Smith – This book is the source of official information about Armstrong Siddeley Motors and its produced vehicles, including historic information and related details of the Armstrong Siddeley Sapphire Royal Vehicles.
3. “Armstrong Siddeley: The Cars, the Factory, the Engines” written by Bill Smith – The book focuses on the cars and technology of Armstrong Siddeley’s production, including detailed information on the Armstrong Siddeley Sapphire Royal Vehicles.
4.”Armstrong Siddeley: The Sphinx with the Heart of a Lion” written by Roy Johnson – This book presents all the history and information about Armstrong Siddeley, together with its various produced cars which includes the Armstrong Siddeley Sapphire Royal Vehicles.