Legacy Metrics

1957 Mercedes-Benz 300 SL Roadster

198.042.7500178roadGermany
Engine
3.0L inline-six with Bosch fuel injection and sports camshaft, 240 bhp
Colour
Silver (factory color, repainted metallic light blue during prior ownership, restored to original silver in 2009)

An early Mercedes-Benz 300 SL Roadster, delivered in Rome on 14 August 1957 to Luigi Innocenti, founder of the Innocenti Company famed for Lambretta and Mini production. The car subsequently passed to Count Werner Rodolfo of Milan, during whose ownership it received a bespoke glass hardtop commissioned by Count Agusta of Agusta Helicopters. Acquired by the current owner's family in 1976, it underwent a light cosmetic and mechanical overhaul in 2009 returning it to its original factory silver. Numbers-matching throughout, European specification, with all major components verified against the build sheet.

Ownership

  1. Auction sale
    Sold €1,051,250 (≈ $1.16M)

    RM Sotheby's catalogue lot →

  2. 1957-08-14 → 1958-02-28Factory delivery
    Luigi Innocenti
    full documentation

    First registered owner, took delivery in Rome with local plates. Head of the Innocenti industrial group, manufacturers of Lambretta scooters and Minis among other products.

  3. 1958-02-28 → 1976-09-16Private sale
    Count Werner Rodolfo
    full documentation

    Milanese nobleman who had the car repainted from factory silver to metallic light blue and retrimmed in leopard-print fabric. A bespoke glass hardtop was fabricated for the car by his close associate Count Agusta of the helicopter manufacturing family.

  4. 1976-09-16 →Private sale
    Consignor's father
    full documentation

    Acquired after extended negotiations to persuade the previous owner to sell. A cosmetic and mechanical refresh in 2009 returned the car to its original factory silver finish; the bodywork was reportedly still in very good condition at that point.

Competition

No competition history extracted from the catalogue.

Maintenance & restoration

  1. 1958
    Bodywork

    Car repainted from original factory silver to metallic light blue, and the interior retrimmed in leopard-print cloth during Count Werner Rodolfo's ownership.

    Exact date within Count Werner's ownership (1958–1976) is not specified beyond being at some point after acquisition in February 1958.

  2. 2009
    Restoration

    Light but comprehensive cosmetic and mechanical overhaul returning the car to its factory silver colour. The bodywork was reportedly still in excellent condition, so the scope was refreshment rather than a structural project.

    Commissioned by the current owner's family. Owner emphasised the limited extent of the work given the sound underlying condition.

  3. Modification

    A unique one-off glass hardtop was produced, reportedly at the behest of Count Agusta of Agusta Helicopters, a close acquaintance of Count Werner who also owned a 300 SL.

    Hardtop remains with the car at time of sale.

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.