Legacy Metrics

1975 Chevron B31

B31/75/05racingUnited Kingdom

The Chevron B31/75/05 is the fifth of six examples built in 1975, designed for the European 2-Litre Championship and based on the aluminium monocoque architecture shared with the B26. Powered by an Anderson Racing Hart 420R engine mated to a J&P Hewland FG400 transaxle, it has competed in HSCC historic racing continuously for close to three decades, winning the 2013 HSCC Martini Sportscars Trophy with four victories from eleven rounds. Presented in Martini livery, both the engine and gearbox have been rebuilt, and the car retains valid HSCC and FIA documentation.

Ownership

  1. 2024-02-23Auction sale
    Sold £85,000 (≈ $106K)

    Iconic Auctioneers catalogue lot →

  2. 2024-02-23Auction sale
    Sold £85,000 (≈ $106K)

    Iconic Auctioneers catalogue lot →

  3. 2024-02-24Auction sale
    Sold £85,000 (≈ $106K)

    Iconic Auctioneers catalogue lot →

  4. Date unknownAcquisition unknown
    Current vendor
    partial documentation

    The vendor has professionally maintained and progressively developed the car since at least 2013, and recently carried out a refresh. The history file includes HSCC paperwork from 1998 and FIA documents from 2001 and 2007.

Competition

  1. 2013HSCC Martini Sportscars Trophy
    HSCC Martini Sportscars Trophy 2013
    Class/series win — four victories from eleven rounds

    The car secured the overall trophy by achieving four of the eleven available race wins across the season.

Maintenance & restoration

  1. 1998
    Inspection

    HSCC eligibility papers issued, formally registering the car within the historic racing regulatory framework.

  2. 2001
    Inspection

    FIA historic technical passport issued for the car.

  3. 2007
    Inspection

    FIA historic technical passport renewed.

  4. Engine rebuild

    The Anderson Racing Hart 420R engine was rebuilt.

    Exact date not stated in the catalogue prose.

  5. Mechanical

    The J&P Hewland FG400 transaxle was rebuilt.

    Carried out alongside or in conjunction with the engine rebuild; exact date not stated.

  6. Service

    Recent cosmetic and mechanical refresh by the current vendor, with the car professionally maintained and incrementally developed over several years.

    The car is described as being in excellent condition following this work.

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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.