Legacy Metrics

1939 Bentley 4¼-Litre MX Overdrive Convertible (Vanvooren coachwork)

B197MXroadUnited Kingdom

Bentley 4¼-Litre chassis B197MX is a rare overdrive 'MX' model bodied by Parisian coachbuilder Vanvooren as a four-seat convertible, completed in early 1940 and delivered to Belgium. Originally ordered by Baron Robert Gendebien, it passed to his son Olivier — four-time Le Mans winner for Scuderia Ferrari — who used it throughout his racing career and kept it until his death in 1998. Following a comprehensive restoration by Clark & Carter Restorations, the car took a first-in-class award at the Pebble Beach Concours d'Elegance in 2019.

Ownership

  1. Auction sale
    Sold €359,375 (≈ $395K)

    RM Sotheby's catalogue lot →

  2. 1940 →Factory delivery
    Baron Robert Gendebien
    partial documentation

    Ordered via Brussels dealer André Pisart; chassis dispatched to Parisian coachbuilder Vanvooren for a four-seat convertible body, delivered to Belgium in early 1940. The car had to be concealed at the family estate during wartime occupation after only a few months of use.

  3. → 1998Inheritance
    Olivier Gendebien
    partial documentation

    Inherited from his father Robert after the war; used the Bentley regularly during his racing career for cross-continental travel to circuits. After retiring from motorsport at age 38, continued using it for journeys to his residence in Provence until his death in 1998.

  4. Date unknownAcquisition unknown
    The Curated Collection
    partial documentation

    Acquired the car following Olivier Gendebien's 1998 passing and subsequently commissioned a full restoration by Clark & Carter Restorations, completed in 2019.

Competition

  1. 2019
    Pebble Beach Concours d'Elegance
    1st in class

    Exhibited shortly after completion of the Clark & Carter restoration; also participated in the drive to Big Sur without incident.

Maintenance & restoration

  1. 1939Bodywork
    Vanvooren

    Chassis delivered to Vanvooren in Paris to be fitted with a bespoke four-seat convertible coachwork body, work completed by January 1940.

    Body was tested at Park Ward before the completed car was despatched to Belgium.

  2. 2019Restoration
    Clark & Carter Restorations

    Comprehensive restoration carried out by Clark & Carter Restorations, returning the car to an exceptionally high standard in time for the 2019 Pebble Beach Concours.

    Commissioned by The Curated Collection; restoration quality was sufficient to win a first-in-class award at Pebble Beach.

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.