1930 Alfa Romeo 6C 1750 Gran Sport Spider
- Engine
- Straight-six, matching-numbers unit, rebuilt after mid-1960s restoration
- Colour
- Alloy-bodied, color not specified
Chassis 8513041 is a 1930 Alfa Romeo 6C 1750 Gran Sport Spider bodied in aluminium by the little-known Milanese coachbuilder Carrozzeria Sport in a manner reminiscent of Zagato and Castagna. After passing through several Italian hands during the 1930s, it was acquired in 1958 by publishing magnate Gianni Mazzocchi, whose family kept it — and displayed it in the QuattroRuote museum — for nearly six decades. The car retains its matching-numbers engine, competed in the Mille Miglia Storica in 1986 and 1987, and has remained active in prestigious historic events into the 2020s.
Ownership
- —Auction saleEstimate €1,400,000 – €1,800,000
- 1930 →Factory deliveryMarque collector based in Genoapartial documentation
First registered owner, located south of Genoa; took delivery of the freshly bodied car from Carrozzeria Sport.
- → 1933Private saleSecond Genoese ownerpartial documentation
Another resident of Genoa who acquired the car in August of the delivery year and raced it during 1932 before returning it to Alfa Romeo in 1933.
- 1933 → 1933Acquisition unknownAlfa Romeopartial documentation
Car was returned to the factory and subsequently resold.
- 1933 →Private saleGenoa resident, third ownerpartial documentation
Sold by Alfa Romeo to another Genoa-based individual; tenure end date not stated.
- 1935 → 1936Private saleCatullo Lamipartial documentation
Pisa-based owner who held the car briefly before it moved on the following year.
- 1936 → 1958Private saleOwner near Cremonapartial documentation
Resident of a town in the Cremona area; held the car until its sale in 1958.
- 1958-05-01 → 2016Private saleGianni Mazzocchifull documentation
Publishing entrepreneur and proprietor of Editoriale Domus; kept the car for nearly six decades as part of the QuattroRuote museum collection. During his tenure the car was used in rallies, restored after 1965, and maintained by marque specialist Gianni Torelli. History file includes correspondence with MGM regarding a film appearance.
- 2016 →Private saleCurrent consignorfull documentation
Has continued active participation in major historic events; car is accompanied by FIVA Identity Card and valid Mille Miglia Register documentation.
Competition
- 1932Racing season
The second Genoese owner campaigned the car during 1932; specific events not identified in the source.
- 1962Stresa–Mottarone Rally
One of two appearances in this rally during the Mazzocchi family's ownership.
- 1965Stresa–Mottarone Rally
Second appearance; prompted a subsequent restoration including bodywork repaint and engine rebuild.
- 1986Mille Miglia StoricaFinisher
First of two consecutive finishes in the historic revival event.
- 1987Mille Miglia StoricaFinisher
Second consecutive finish in the revival event.
- 2019Gran Premio Nuvolari
Regularity rally; one of four entries under the current owner's stewardship.
- 2021Gran Premio Nuvolari
- 2022Gran Premio Nuvolari
- 2023Gran Premio Nuvolari
- 2024Mille Miglia
Most recent event entry; Mille Miglia Register papers valid through mid-2026.
- —Targa Florio
Historic edition; year not specified in the source, entered under the current owner.
Maintenance & restoration
- 1958Repair
Engine repaired after being found non-starting at the time of Mazzocchi's acquisition; body and drivetrain were otherwise intact.
Repairs delayed response to an MGM Films approach to feature the car in a French production.
- 1965Restoration
Post-1965 rally restoration encompassing a full repaint of the coachwork and a complete rebuild of the inline six-cylinder engine.
Work carried out following the car's second Stresa–Mottarone appearance, still under Mazzocchi family ownership.
- —ServiceGianni Torelli
Long-term ongoing care and maintenance provided by marque specialist Gianni Torelli, contributing to the car's notably well-preserved condition.
Duration of care not precisely specified in the prose; associated with the museum period under the Mazzocchi family.
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