Legacy Metrics

1968 Bizzarrini 5300 GT Strada

IA3 0309roadItaly
Engine
5.4L Chevrolet small-block V8, three Weber carburettors, 365 hp

The Bizzarrini 5300 GT Strada was a high-performance grand tourer developed by former Ferrari executive Giotto Bizzarrini, derived from the Iso Grifo platform and available from 1964. Powered by a Chevrolet small-block V8, it offered genuine supercar performance with a claimed 174 mph top speed. Chassis IA30309 was first registered in Maryland in 1968, later underwent a comprehensive restoration by former Bizzarrini factory manager Salvatore Diomante, and was subsequently shown at the Bagatelle concours in 1997.

Ownership

  1. Auction sale
    Sold €680,000 (≈ $748K)

    RM Sotheby's catalogue lot →

  2. 1968-05-08 →Acquisition unknown
    James Peters
    partial documentation

    First registered in Maryland, USA; paid approximately twice the cost of a comparable Ferrari GT of the era.

  3. 1990-04-01 → 2017Private sale
    Hervé Ogliastro
    full documentation

    Commissioned a comprehensive restoration by Salvatore Diomante, a former Bizzarrini factory manager; held the car for roughly 27 years before selling.

  4. 2017 →Private sale
    Current vendor
    partial documentation

    Acquired directly from Ogliastro in 2017; identity specialist report confirming chassis authenticity was produced around the time of this transfer.

Competition

  1. 1997
    Bagatelle Concours d'Élégance

    Car was exhibited following completion of its major restoration; no competitive result recorded in the prose.

Maintenance & restoration

  1. 1990Restoration
    Salvatore Diomante

    Full restoration commissioned by Hervé Ogliastro and carried out by Salvatore Diomante, who had previously managed the Bizzarrini factory. The work was completed by 1997.

    Supporting service invoices covering work from 1991 through 2004 are held in the car's history file.

  2. 2017Inspection
    Jack Koobs de Hartog

    A three-hour examination by Bizzarrini specialist Jack Koobs de Hartog confirmed the correct chassis number without reservation.

    This was the second of two inspections conducted by the same specialist; reports from both are included in the history file.

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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.