Legacy Metrics

1973 Porsche 911 Carrera RS 2.7 (M472 Touring)

9113600856roadGermany
Engine
2.7L flat-six with Bosch mechanical fuel injection, 210 bhp at 6,300 rpm (later rebuilt to 2.8L with 92 mm pistons)
Colour
Signal Yellow over black leatherette

A 1973 Porsche 911 Carrera RS 2.7 in Touring specification (M472), finished in Signal Yellow over black leatherette and one of only 87 built in that colour combination. Originally delivered in Germany in April 1973, the car passed through several documented American owners and received a comprehensive bare-metal restoration in Germany in the mid-1980s. A later concours-quality restoration returned it to factory-correct colour and specification, and it subsequently took Best in Class and Grand Award honours at the 2016 Concours d'Elegance of Texas.

Ownership

  1. Auction sale
    Estimate US$750,000 – US$850,000

    RM Sotheby's catalogue lot →

  2. 1973-04-01 → 1978Factory delivery
    First German owner
    partial documentation

    Took delivery new in Germany; drove the car approximately 58,640 km over roughly five years before selling.

  3. 1978 →Private sale
    Second owner, German collector
    partial documentation

    Placed the car in dry storage from acquisition until 1985, then commissioned a full restoration by specialist Hartmut Burhop at Automobil Conversion in Ganderkensee, including a bare-metal respray, engine overhaul, and suspension refresh.

  4. 1988 → 1993Acquisition unknown
    James Ladwig
    partial documentation

    Registered the vehicle in Melrose, Illinois after it was brought to the United States; the car was in US registration by late 1988.

  5. 1993 →Private sale
    Jeffrey Proval
    partial documentation

    Had the bodywork resprayed in dark green during his ownership.

  6. Date unknownPrivate sale
    Mark Lunenburg
    partial documentation

    Based in Farmington, Connecticut; engaged Jim Newton of Canton, Connecticut, to carry out a two-year concours-grade restoration to factory specification and original Signal Yellow colour.

  7. Date unknownAuction
    Bruce Canepa
    partial documentation

    Restorer and collector based in Scotts Valley, California; bought the car at a Texas auction, entered it in the 2016 Concours d'Elegance of Texas, then serviced and detailed it in California before selling.

  8. Date unknownPrivate sale
    Current owner
    partial documentation

    Acquired from Canepa; car presented in original Signal Yellow with refinished Fuchs alloys and updated chain tensioners.

Competition

  1. 2016
    2016 Concours d'Elegance of Texas
    Best in Class and Grand Award

    Car was entered among outstanding lots from a Texas auction; achieved two top ribbons at the event while under Bruce Canepa's ownership.

Maintenance & restoration

  1. 1985Restoration
    Automobil Conversion (Hartmut Burhop)

    Full bare-metal strip and respray with minor rust rectification carried out. Engine rebuilt with a replacement crankshaft and larger-bore Mahle pistons bringing displacement to 2.8 litres; new oil pump, fuel-injection pump, distributor, generator, fuel pump, flywheel, and clutch fitted. Brakes and suspension overhauled, new Bilstein dampers installed, and a new front oil cooler added.

    Work carried out in Ganderkesee, Germany on behalf of the second owner following several years of dry storage.

  2. 1993
    Bodywork

    Exterior resprayed in dark green, departing from the factory-correct Signal Yellow finish.

    Carried out during Jeffrey Proval's ownership.

  3. 2016
    Service

    Serviced and cosmetically detailed following acquisition at the Texas auction.

    Carried out by or on behalf of Bruce Canepa in California prior to the car's onward sale.

  4. Restoration
    Jim Newton (Canton, Connecticut)

    Two-year concours-quality restoration returning the car to factory-original specification and correct Signal Yellow colour, carried out over approximately two years.

    Commissioned by Mark Lunenburg; the car had accumulated only a few hundred miles post-restoration before its subsequent sale.

  5. Mechanical

    Engine updated with pressure-fed chain tensioners to improve long-term reliability.

    Timing of this modification is not specified in the catalogue.

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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.