Legacy Metrics

1948 Bentley Mark VI B Special 3/8-Litre Racer

B23CDroadUnited Kingdom
Engine
Rolls-Royce B-series straight-eight, fed by four SU Type H.6 carburettors
Colour
British Racing Green

Chassis B23CD is a 1948 Bentley Mark VI originally delivered as a standard Sports Saloon to its first owner in Cardiff. In 2017 the bare chassis was comprehensively transformed by Racing Green Engineering into a B Special 3/8-Litre Racer, an evocation of the pre-war Brooklands and Crystal Palace specials, powered by a Rolls-Royce B-series eight-cylinder engine fed by four SU carburettors and clothed in a tapered open body finished in British Racing Green.

Ownership

  1. Auction sale
    Sold £230,000 (≈ $288K)

    RM Sotheby's catalogue lot →

  2. 1948 →Private sale
    Cardiff resident, second owner
    partial documentation

    Also based in Cardiff; acquired the car during the winter following its original delivery.

  3. 1948-04-15 → 1948Factory delivery
    Captain W R Bailey
    full documentation

    First registered owner, based in Cardiff, Wales. Factory build records confirm original specification as Sports Saloon in Dual Grey with Blue leather. Ownership was brief, the car passing to another Cardiff resident within the same year.

  4. 2017 →Acquisition unknown
    Racing Green Engineering
    partial documentation

    Undertook a full transformation of the chassis into a B Special 3/8-Litre Racer, drawing inspiration from 1930s motorsport specials. Work included fitting a Rolls-Royce B-series eight-cylinder engine, four SU carburettors, upgraded suspension, and a new sporting body.

Competition

No competition history extracted from the catalogue.

Maintenance & restoration

  1. 2017Restoration
    Racing Green Engineering

    The Mark VI chassis was fully rebuilt and re-bodied by Racing Green Engineering to B Special 3/8-Litre Racer specification, with a new tapered open body, exposed exhaust, aero fairing, cognac leather cockpit, and machine-turned instrument panel. A Rolls-Royce B-series eight-cylinder engine with four SU Type H.6 carburettors was fitted, along with uprated springs, 19-inch tyres, and a mixed hydraulic/mechanical drum-brake arrangement.

    The build concept drew on the pre-war motorsport specials associated with Brooklands and Crystal Palace circuits.

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Each chassis record is compiled from public auction archives and links to its source material. Ownership, competition and maintenance entries are extracted from those catalogue listings by an LLM, which can make mistakes — please contact us with any corrections. The summary is Legacy Metrics’ own writing; we do not reproduce catalogue text.

“Full” and “partial” documentation labels indicate how well each entry is corroborated in the underlying sources, not an audit of the car’s physical paperwork. Names of recent or living owners are withheld for privacy.