The Alvis Firefly is a car manufactured by

Alvis Alvis may refer to: *Alvis Car and Engineering Company, British luxury car and military vehicle manufacturer which later became Alvis plc * Alvis plc (formerly United Scientific Holdings plc), a defence contractor which acquired Alvis Cars and bec ...

from 1932 until 1934. It followed on from the 12/50 TJ model. The car had a

four-cylinder The engine configuration describes the fundamental operating principles by which internal combustion engines are categorized. Piston engines are often categorized by their cylinder layout, valves and camshafts. Wankel engines are often categorize ...

engine with overhead valves. The engine, with a single SU carburettor and with a displacement of 1496 cm³, delivered at 4500 rpm. The engine was essentially the same as the 12/50 TH model from 1927 and the 12/50 SD from 1927 to 1929. This made it cheap to manufacture and the model fitted into the 1.5-liter class which was popular at that time. A roadster appeared in 1932. In 1933, a four-door touring car, a sedan and a two-door convertible were introduced under the name Alvis Firefly 12. The rigid axles front and rear were suspended by semi-elliptical leaf springs. The wheelbase, the type of suspension and, in some cases, the bodies, corresponded to the previous six-cylinder model Silver Eagle SE and TB. The top speed was approximately 71 mph depending on the design. In 1934, the

Firebird Firebird and fire bird may refer to: Mythical birds * Phoenix (mythology), sacred firebird found in the mythologies of many cultures * Bennu, Egyptian firebird * Huma bird, Persian firebird * Firebird (Slavic folklore) Bird species ''Various spe ...

model replaced both Firefly models. Up until that point 904 Firefly Roadsters and 871 Firefly 12s had been built. 1933 Alvis Firefly 12 8857488228

Sources

David Culshaw, Peter Horrobin: The Complete Catalogue of British Cars 1895–1975. Veloce Publishing, Dorchester 1997, , Pp. 35–40.

References

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Firefly The Lampyridae are a family of elateroid beetles with more than 2,000 described species, many of which are light-emitting. They are soft-bodied beetles commonly called fireflies, lightning bugs, or glowworms for their conspicuous production ...

Cars introduced in 1932