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PDA

PDA was a short-lived British cyclecar marque produced by Pickering, Darby and Allday in Birmingham from 1912 to 1913.

Last updated August 31, 2026

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Overview

PDA was the automotive marque of Pickering, Darby and Allday Ltd, a British manufacturer associated with the early cyclecar market. The company operated from Birmingham and produced the PDA Cyclecar during the brief period from 1912 to 1913. Cyclecars were small, lightweight vehicles developed to offer simpler and generally less costly motoring than conventional full-size cars, and they formed a distinct part of the British motor industry before and during the early years of the First World War. The PDA Cyclecar was equipped with V2 engines sourced from various manufacturers rather than being identified with one exclusive engine supplier. This arrangement reflected the limited-scale and relatively flexible manufacturing practices common among small cyclecar builders. The available reference material does not identify a single standardized engine specification, detailed body range, or broader model portfolio. The marque therefore appears to have centered on one principal cyclecar product rather than a diversified passenger-car lineup. Production was very limited. Approximately 15 PDA vehicles are recorded as having been built, and the marque was active for only two model years. The short production run places PDA among the many small British automotive ventures that participated in the early cyclecar movement but did not develop into sustained motor manufacturers. No evidence in the supplied sources indicates a later revival, acquisition, continued production, or surviving corporate operation under the PDA name. PDA is historically significant mainly as an example of Birmingham’s early twentieth-century automotive activity and of the experimental, low-volume character of the British cyclecar sector. Its surviving documentation is sparse, and details such as the company’s founders, exact factory address, retail pricing, distribution network, and reasons for ending production are not established by the available material. The brand should not be confused with unrelated uses of the acronym PDA or with later technology products using the same initials.

History

Pickering, Darby and Allday Ltd, abbreviated as PDA, was a British automobile manufacturer based in Birmingham. Its known automotive activity belongs to the early cyclecar era, when a number of small manufacturers attempted to build compact and relatively simple vehicles for customers seeking an alternative to larger conventional cars. PDA entered this field in 1912 with the PDA Cyclecar. The vehicle used a V2 engine, with engines obtained from various manufacturers over the course of production. The available historical record does not establish one uniform engine make or a complete technical specification, so the marque is best understood as a low-volume assembler and manufacturer whose configuration could vary according to available power units. No additional PDA model range is documented in the supplied references. Production continued into 1913 but remained extremely small. Approximately 15 examples are recorded, making PDA a particularly limited participant in the British cyclecar industry. The company’s brief operating period and low output suggest that it did not achieve the scale required to become a lasting national automobile producer, although the available sources do not state the precise reason for the end of production. The PDA story reflects the fragmented nature of the British motor industry before mass production became dominant. Birmingham was an important center of engineering and manufacturing, and firms such as PDA operated within an environment where specialist workshops could attempt automobile production without the resources of the largest manufacturers. Cyclecars offered a route into motoring manufacture through compact dimensions, comparatively straightforward construction, and the use of components or engines supplied by outside makers. After 1913, the supplied references provide no evidence of continued PDA automobile production, a successor marque, a merger, or a later corporate revival. The brand is consequently treated as defunct. Historical information is limited to its manufacturer identity, Birmingham association, production period, cyclecar product, V2 power units, and approximate output. Further details about the company’s ownership, management, factory, sales territories, pricing, and surviving vehicles remain unconfirmed.

  • 1913

    Production ends after a short run

    [1]

    PDA’s documented automobile production ends after approximately two years, with total output estimated at around 15 vehicles.

  • 1912

    PDA enters automobile production

    [1]

    Pickering, Darby and Allday Ltd begins producing the PDA Cyclecar in Birmingham, establishing the PDA marque as a British cyclecar manufacturer.

Products and positioning

A small-scale British cyclecar marque serving the early low-volume market for lightweight, economical motor vehicles.

  • Cyclecar · 1912

    PDA Cyclecar

    The PDA Cyclecar was the marque’s principal and apparently only documented automobile product. It was built in Birmingham between 1912 and 1913 and used a V2 engine, with power units supplied by various manufacturers. Production was highly limited, with approximately 15 examples recorded. The available sources do not provide a complete specification, body-style range, price, or detailed account of its chassis and transmission.

Sources1 sources

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