1930 Alfa Romeo 6C 1750 Gran Sport Spider (4th Series)
- Engine
- Supercharged inline-six with original factory transmission
Chassis 8513001 is the first car produced in the fourth series of Alfa Romeo 6C 1750 Gran Sport Spiders, which entered production in 1930. Clothed in an alloy spider body by the Milanese coachbuilder Carrozzeria Sport S.A., it was imported to Switzerland in June 1930 and raced by Baron Horst Von Waldthausen and Julio Villars under the Equipe Villars-Waldthausen banner, earning championship points in the 1932 Swiss sports car series. The car spent decades in Swiss ownership before undergoing a comprehensive concours-level restoration in the early 2000s, and is believed to retain its original engine, supercharger, and transmission.
Ownership
- —Auction saleEstimate €2,200,000 – €2,600,000
- 1930-06-10 → 1933Private saleBaron Horst Von Waldthausenfull documentation
Swiss-based German nobleman who officially imported the car on 10 June 1930 and used it in Swiss Championship competition; period photographs and registration records support this tenure.
- 1949-05-01 → 1950Acquisition unknownJean Sayarepartial documentation
Swiss resident who registered the car under plate VD 20441; held it for roughly eighteen months before selling.
- 1950 → 1953Private saleFrank Gilroypartial documentation
Also registered the car in Switzerland under plate VD 27635.
- 1953 → 2001-08-01Private saleErnest Mayeratfull documentation
Swiss custodian who kept the car for over 48 years, maintaining it in largely original condition; Swiss registration records corroborate his tenure.
- 2001-08-01 →Private saleFrench private collectorpartial documentation
Consignor who acquired the car from Mayerat and commissioned a full restoration by Auto Classique Touraine in Veigne, France.
- Date unknownFactory deliveryCarrozzeria Sport S.A.partial documentation
Milanese coachbuilder that fitted an alloy open body to the chassis before the car entered the ownership chain.
Competition
- 1932Swiss ChampionshipKlausenpass hillclimbDriver: Julio Villars2nd in class
Contested in early August 1932 after Von Waldthausen moved to a larger-displacement Alfa for his own entries.
- 1932Stelvio hillclimbDriver: Julio Villars3rd
Held in Italy later in August 1932, shortly after the Klausenpass result.
- 1932Swiss ChampionshipMont Ventoux hillclimbDriver: Julio Villars2nd in class
Contested in early September 1932 in France; simultaneously Von Waldthausen drove the 8C 2300 in the 3-litre class, finishing behind Caracciola and Benoist.
- 1932-03-01Swiss ChampionshipGrand Saconnex hillclimbDriver: Baron Horst Von Waldthausen2nd in class
First recorded competition entry for the car, running under Swiss registration 9221.
Maintenance & restoration
- 2001RestorationAuto Classique Touraine
Full concours-standard restoration carried out following the French collector's acquisition of the car.
Workshop located in Veigne, France. Restoration is documented with photographs. Car is believed to retain its original factory-fitted engine, supercharger, transmission, and bonnet.
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