Legacy Metrics

1957 Mercedes-Benz 300 SL Roadster

198.042.10.002484roadGermany
Engine
Fuel-injected inline-six, NSL sporting tune
Colour
Graphite grey

An early Mercedes-Benz 300 SL Roadster finished in its original Graphite Grey over red leather, a combination restored to factory specification after the car passed through several American owners. Introduced in 1957 as a convertible successor to the iconic Gullwing coupe, the 300 SL Roadster shared the coupe's high-performance fuel-injected engine and offered top speeds between 133 and 155 mph. This example has resided in a climate-controlled private collection since a full restoration was completed around 2009.

Ownership

  1. Auction sale
    Estimate US$1,100,000 – US$1,250,000

    RM Sotheby's catalogue lot →

  2. → 1974Factory delivery
    Donald J.G. Leek
    partial documentation

    First registered owner, based in Hammonton, North Dakota, per the Gull Wing Group Roadster Register. Car was originally finished in Graphite Grey over red leather during this period.

  3. 1974 → 1998Acquisition unknown
    Arthur S. Kleimer
    partial documentation

    Resident of Edison, New Jersey; held the car for over two decades. During his ownership the bodywork was repainted blue.

  4. 1998 →Private sale
    Russell Moran
    partial documentation

    Based in Wheatridge, Colorado; sold the car shortly after acquiring it to a subsequent owner in New Jersey.

  5. → 2009Private sale
    CB Restorations
    partial documentation

    Restoration specialist based in Haverhill, Massachusetts, acting as agent for the current owner. Carried out a comprehensive restoration including returning the car to its original Graphite Grey and red leather livery.

  6. 2009 →Private sale
    Current owner
    partial documentation

    Car kept in a climate-controlled private collection and driven approximately 1,000 miles since acquisition; regularly serviced and exercised.

  7. Date unknownPrivate sale
    Private gentleman in Mendham, New Jersey
    partial documentation

    Owned the car for roughly a decade; during this period the car was refinished in red. Subsequently sold to CB Restorations acting on behalf of the current owner.

Competition

No competition history extracted from the catalogue.

Maintenance & restoration

  1. 2009Restoration
    CB Restorations

    Comprehensive restoration returning the car to its original Graphite Grey exterior and red leather interior specification.

    Work carried out in Haverhill, Massachusetts on behalf of the current owner prior to delivery.

  2. Bodywork

    Exterior repainted blue at some point during Arthur Kleimer's ownership in New Jersey.

  3. Bodywork

    Bodywork refinished in red during the tenure of the Mendham, New Jersey owner.

  4. Service

    Routine servicing and periodic exercise maintained since the restoration, with the car stored in a climate-controlled environment.

    Approximately 1,000 miles accumulated since 2009.

Are you the owner of this car?

This car's public record is built from its auction and competition history. Register your ownership and privately add your own records to make it a verified Legacy Metrics passport — provenance that backs your car's value at sale and gives your insurer evidence to price against. Roy reviews and verifies every registration personally.

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.