Legacy Metrics

1954 Arnolt-Bristol DeLuxe Roadster

404/X/3097roadUnited States
Engine
2.0L inline-six, tunable to over 150 bhp
Colour
British Racing Green

A 1954 Arnolt-Bristol DeLuxe Roadster, one of only 130 ever built, combining a Bristol 404 chassis with Bertone coachwork arranged by American industrialist S.H. 'Wacky' Arnolt. Originally delivered to a Mexican state governor, it subsequently passed through Guatemala before reaching the UK, where it was restored. Acquired in 2009 and subjected to a thorough professional rebuild costing circa €130,000, it has since competed in three Mille Miglia Storica events and retains its original matching-numbers engine.

Ownership

  1. 2019-06-30Auction sale
    Estimate €290,000 – €330,000

    Bonhams catalogue lot →

  2. 1954 →Factory delivery
    Efrain Aranda Osorio
    partial documentation

    Original recipient of the car, serving at the time as governor of the Chiapas region in Mexico. Provenance based on vendor-supplied information.

  3. → 1970
    Guatemalan garage owner or custodian
    none documentation

    Car was found in a garage in Guatemala in 1970 and subsequently exported to the United States; no named owner recorded for this period.

  4. 2009 →Acquisition unknown
    Current vendor
    partial documentation

    Purchased with the intention of entering the Mille Miglia Storica; commissioned a full restoration costing approximately €130,000 during 2013 and 2014.

  5. Date unknownPrivate sale
    Andrew Howarth
    partial documentation

    Acquired the car after it arrived in the US, then brought it to the UK where it was restored and registered under the plate 518 XUN.

Competition

  1. 2012Mille Miglia Storica
    2012 Mille Miglia Storica
    Completed without incident

    Current owner drove the car through the entire event with no mechanical issues.

  2. 2015Mille Miglia Storica
    2015 Mille Miglia Storica
    Completed without incident

    First event following the comprehensive 2013/2014 rebuild; car ran without any problems.

  3. 2016Mille Miglia Storica
    2016 Mille Miglia Storica
    Completed without incident

    Second consecutive Mille Miglia after the restoration; again completed without mechanical trouble.

Maintenance & restoration

  1. 2018
    Inspection

    Passed the German TÜV roadworthiness assessment with no defects recorded on 13 June 2018.

  2. Restoration

    A restoration was carried out in the UK by Andrew Howarth, following which the car received British registration '518 XUN'. Scope of work is not detailed.

    Preceded the current vendor's ownership; approximate date unknown.

  3. Restoration

    Comprehensive professional rebuild undertaken across 2013 and 2014 at an approximate cost of €130,000, completed after the car's first Mille Miglia entry.

    Described as the second full restoration of the car; scope not itemised beyond 'comprehensive rebuild'.

  4. Mechanical
    UK carburettor specialist

    Carburettor professionally rebuilt by a UK-based specialist; described as recent relative to the sale date.

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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.