Legacy Metrics

1970 Plymouth Superbird Hemi Coupe

RM23R0A176668roadUnited States
Engine
426 ci OHV V8 'Hemi', twin Carter four-barrel carburetors, 425 bhp
Colour
'Hi-Impact Vitamin C' orange

A 1970 Plymouth Superbird coupe, chassis RM23R0A176668, powered by the rare 'R-Code' 426 cubic-inch Hemi V8 — one of approximately 135 such examples built. Finished in 'Hi-Impact Vitamin C' orange over a white interior, the car retains its original, numbers-matching, date-coded engine and transmission. Produced on 8 December 1969 as a NASCAR homologation requirement, it received a detailed restoration authenticated by Mopar historian Galen Govier and was awarded an AACA Senior National First Prize in 2014.

Ownership

  1. 2025-05-04Auction sale
    Sold US$380,000

    Bonhams catalogue lot →

  2. Date unknownAcquisition unknown
    The Orange Collection
    full documentation

    Consignor at the time of sale; the car is presented with a detailed restoration and extensive authentication documentation compiled over many years.

Competition

  1. 2014AACA National Show Circuit
    AACA Senior National First Prize
    Senior National First Prize

    The car received this award following a thorough, well-documented restoration to factory specification.

Maintenance & restoration

  1. 2005
    Inspection

    Detailed authenticity inspection and analysis carried out by Mopar historian Galen Govier, confirming numbers-matching and date-coded engine and transmission, and verifying the car as a genuine Hemi Superbird.

    Reports from this inspection are included in the accompanying history binder.

  2. —
    Restoration

    A thorough, well-documented restoration returning the car to factory-correct colors and options, including meticulous attention to stampings, castings, and numbered components to confirm authenticity.

    Restoration predates the 2014 AACA award; extensive photographic documentation of the work was compiled and included in the history file.

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How this record is sourced

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.