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1931 Alfa Romeo 6C 1750 Zagato Spyder / 10814349 Vehicle Information

1931 Alfa Romeo 6C 1750 photograph

1931 Alfa Romeo 6C 1750 photograph

1931 Alfa Romeo 6C 1750 photograph

1931 Alfa Romeo 6C 1750 photograph

1931 Alfa Romeo 6C 1750 photograph

1931 Alfa Romeo 6C 1750 photograph

1931 Alfa Romeo 6C 1750 photograph

1931 Alfa Romeo 6C 1750 photograph

1931 Alfa Romeo 6C 1750 photograph

1931 Alfa Romeo 6C 1750 photograph

1931 Alfa Romeo 6C 1750 photograph

1931 Alfa Romeo 6C 1750 photograph

1931 Alfa Romeo 6C 1750 photograph

1931 Alfa Romeo 6C 1750 photograph

1931 Alfa Romeo 6C 1750 photograph

1931 Alfa Romeo 6C 1750 photograph

1931 Alfa Romeo 6C 1750 photograph

1931 Alfa Romeo 6C 1750 photograph

1931 Alfa Romeo 6C 1750 photograph

1931 Alfa Romeo 6C 1750 photograph

1931 Alfa Romeo 6C 1750 photograph

1931 Alfa Romeo 6C 1750 photograph

1931 Alfa Romeo 6C 1750 photograph

1931 Alfa Romeo 6C 1750 photograph

1931 Alfa Romeo 6C 1750 photograph

1931 Alfa Romeo 6C 1750 photograph

1931 Alfa Romeo 6C 1750 photograph

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The Alfa marque was founded in 1910 and in 1923 Nicola Romeo hired Vittorio Jano from rival Fiat. In less than a year, Sig. Jano unveiled the P2 Grand Prix car that was an immediate success. It was a masterpiece of automotive design that won several Grand Prix victories and claimed the first manufacturer's championship for Alfa Rome in 1925.

Next, Sig. Jano began work on a production chassis with sporting potential. What resulted was the six-cylinder (6C) that was built between 1927 and 1933 in various specifications. During the production lifespan of the 6C, a total of 3,514 examples were built. The rarest specifications were the short-chassis Super Sport and Grand Sport 1750, which featured twin overhead camshafts, hemispherical combustion chambers, and Roots-Type superchargers. Just 309 of these 6C 1750 Alfa Romeos were built.

Alfa Romeo built the chassis while the bodies were built and installed by a variety of coachbuilders, including Castagna, Pininfarina, Touring, James Young and Zagato. The Gran Sport was the most powerful of the 1750 variations. The cars were driven in competition by private owners as well as by factory drivers.

The 1,752cc six-cylinder motor featured dual overhead camshafts and developed 85 horsepower thanks to the optional supercharger. Not surprisingly, the 6C was a regular winner on the European racing circuit. Their list of victories including the Mille Miglia, 24 Hours of Spa, Brooklands Double Twelve, and the Tourist Trophy Race.

This Alfa Romeo received Best in Show at the 2003 Glenmoor Gathering. It was also an award winner at the Pebble Beach Concours d'Elegance and the Louis Vuitton Classic.

It was built for the 1931 model year and its history traces back to February 23rd of 1934 when it was imported into Switzerland. It was in Swiss ownership from at least 1947 through 1959. During this time, its original body was damaged and repaired at one point, leaving only the original substructure and some interior panels intact.

Around 1960, this Alfa Romeo was acquired by Jean de Dobbeleer or Brussels, Belgium. A short time later, it was sold to Gene Cesari and exported to the United States, where it eventually landed on the lot of a Cadillac and Rolls-Royce dealer in St. Louis, Missouri. From here, it was purchased by Vivian Krespi of Princeton, New Jersey. In 1966, it was purchased directly from Ms. Krespi by its current caretaker. Over the next two decades, the Alfa Romeo saw little use.

In 1993, after an initial restoration had taken place but not to the owner's high standards, another restoration began. The work took three years of concentrated effort. Two complete and original Zagato-bodied 6C 1750 Gran Sports were used as reference to re-create the coachwork. The chassis was carefully restored, the engine was completely rebuilt and the entire process was documented.

After the work was completed, it was unveiled at the 1996 Pebble Beach Concours d'Elegance, where it earned Best in Class and the Strother MacMinn Award for the Most Elegant Sports Car. The car went on to capture a Best in Class at the Amelia Island Concours d'Elegance and a perfect 100-point score at the CCCA National Meet. At the Louis Vuitton Classic at Rockefeller Center in 1997 it won Best of Show from a field of 48 significant classics and sports cars.



2017 Gooding & Company : Pebble Beach

Pre-Auction Estimates :
USD $2,000,000-USD $2,500,000 
Lot was not sold

1931 Alfa Romeo 6C 1750 Auction Sales

Recent Sales

(Data based on Model Year 1931 sales)
1931 Alfa Romeo 6C 1750 GTC
Chassis#: 101014832
Sold for USD$582,500
  2020 Bonhams : Quail Motorcar Auction
 
1931 ALFA ROMEO 6C 1750 5TH SERIES SUPERCHARGED GRAN SPORT SPIDER
Chassis#: 10814358
Sold for USD$2,805,000
  2017 Bonhams : Scottsdale, AZ
1931 Alfa Romeo 6C 1750 image  1931 Alfa Romeo 6C 1750 image  
1931 Alfa Romeo 6C 1750 Supercharged Gran Sport Spider
Chassis#: 10814356
Sold for USD$3,080,000
  2014 Bonhams - The Scottsdale Auction
1931 Alfa Romeo 6C 1750 image  1931 Alfa Romeo 6C 1750 image  
1931 Alfa Romeo 6C 1750 GT Cabriolet by Carrozzeria Castagna
Chassis#: 10914408
Sold for USD$434,080
  2012 RM Auctions at Monaco
1931 Alfa Romeo 6C 1750 image  1931 Alfa Romeo 6C 1750 image  
1931 Alfa Romeo 6C 1750
Chassis#: 10814368
Sold for USD$1,320,000
  2008 Gooding & Company
1931 Alfa Romeo 6C 1750 image  1931 Alfa Romeo 6C 1750 image  
1931 Alfa Romeo 6C 1750 Super Sport
Sold for USD$946,000
  2007 Gooding & Company
1931 Alfa Romeo 6C 1750 image  1931 Alfa Romeo 6C 1750 image  

Vehicles That Failed To Sell

1931 Alfa Romeo 6C 1750's that have appeared at auction but did not sell.
VehicleChassisEventHigh BidEst. LowEst. High
1931 Alfa Romeo 6c 1750 GTC Fifth Series Cabriolet1010148322020 Bonhams : Amelia Island Concours $800,000$900,000
1931 Alfa Romeo 6C 1750 Series V Gran Sport108143492017 Gooding & Company : Pebble Beach $2,000,000$2,500,000
1931 Alfa Romeo 6C 1750 5e série à compresseur spider Gran SportAR 108 143142015 Bonhams : Les Grandes Marques du Monde au Grand Palais $1,800,000$2,400,000

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1931 Alfa Romeo 6C 1750 vehicle thumbnail image  1931 Alfa Romeo 6C 1750 vehicle thumbnail image  
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1931 Alfa Romeo 6C 1750 vehicle thumbnail image  1931 Alfa Romeo 6C 1750 vehicle thumbnail image  
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Alfa Romeo 6C 1750 Vehicle Profiles
Spyder
Alfa Romeo 6C 1750 Spyder

Model Year: 1930
Profile
Testa Fissa Spyder
Alfa Romeo 6C 1750 Testa Fissa Spyder

Coachbuilder: A.E. Leadbetter
Engine Num: 8513025
Model Year: 1930
Profile
Spyder
Alfa Romeo 6C 1750 Spyder

Chassis Num: 0529
Model Year: 1930

Drop Head Coupe
Alfa Romeo 6C 1750 Drop Head Coupe

Coachbuilder: Castagna
Chassis Num: 121215033
Engine Num: 121215033
Model Year: 1930
Profile and Auction History
Spyder
Alfa Romeo 6C 1750 Spyder

Chassis Num: 8513033
Engine Num: 8513033
Model Year: 1930
Profile and Auction History
Spyder
Alfa Romeo 6C 1750 Spyder

Chassis Num: 8513045
Engine Num: 8513045
Model Year: 1930
Profile

Spyder
Alfa Romeo 6C 1750 Spyder

Chassis Num: 8513053
Model Year: 1930
Profile and Auction History
Spyder
Alfa Romeo 6C 1750 Spyder

Chassis Num: 8513064
Engine Num: 8513064
Model Year: 1930
Profile and Auction History
Zagato Spyder
Alfa Romeo 6C 1750 Zagato Spyder

Coachbuilder: Zagato
Model Year: 1931
Profile

Zagato Spyder
Alfa Romeo 6C 1750 Zagato Spyder

Coachbuilder: Zagato
Model Year: 1931
Profile
Zagato Spyder
Alfa Romeo 6C 1750 Zagato Spyder

Coachbuilder: Zagato
Model Year: 1931
Profile
Touring Spyder
Alfa Romeo 6C 1750 Touring Spyder

Coachbuilder: Touring
Chassis Num: 10814320
Engine Num: 10814320
Model Year: 1931

Spider Corsa
Alfa Romeo 6C 1750 Spider Corsa

Coachbuilder: Giuseppe Aprile
Chassis Num: 10814331
Model Year: 1931
Profile
Flying Star Spyder
Alfa Romeo 6C 1750 Flying Star Spyder

Coachbuilder: Touring
Chassis Num: 10814341
Model Year: 1931
Profile
Zagato Spyder
Alfa Romeo 6C 1750 Zagato Spyder

Coachbuilder: Zagato
Chassis Num: 10814344
Model Year: 1931
Profile

Zagato Spyder
Alfa Romeo 6C 1750 Zagato Spyder

Coachbuilder: Zagato
Chassis Num: 10814349
Engine Num: 10814349
Model Year: 1931
Profile and Auction History
Zagato Spyder
Alfa Romeo 6C 1750 Zagato Spyder

Coachbuilder: Zagato
Chassis Num: 10814356
Engine Num: 10814356
Model Year: 1931
Profile and Auction History
Zagato Spyder
Alfa Romeo 6C 1750 Zagato Spyder

Coachbuilder: Zagato
Chassis Num: 10814358
Model Year: 1931
Profile and Auction History

Zagato Spyder
Alfa Romeo 6C 1750 Zagato Spyder

Coachbuilder: Zagato
Chassis Num: 10814368
Engine Num: 10814368
Model Year: 1931
Profile and Auction History
Cabriolet
Alfa Romeo 6C 1750 Cabriolet

Coachbuilder: Castagna
Chassis Num: 10914408
Model Year: 1931
Profile and Auction History
Berlinetta Aerodinamica GT
Alfa Romeo 6C 1750 Berlinetta Aerodinamica GT

Coachbuilder: Touring
Chassis Num: 10914569
Engine Num: 10914569
Model Year: 1931
Profile

Zagato Spyder
Alfa Romeo 6C 1750 Zagato Spyder

Coachbuilder: Zagato
Chassis Num: 6C 10814363
Engine Num: 10814383
Model Year: 1931
Profile
Spyder
Alfa Romeo 6C 1750 Spyder

Coachbuilder: Zagato
Model Year: 1932
Gran Sport
Alfa Romeo 6C 1750 Gran Sport

Coachbuilder: Figoni
Chassis Num: 10814377
Engine Num: 10814377
Model Year: 1932
Profile and Auction History

Gran Sport
Alfa Romeo 6C 1750 Gran Sport

Coachbuilder: Zagato
Chassis Num: 10814400
Engine Num: 10814400
Model Year: 1932
Profile and Auction History
Spyder
Alfa Romeo 6C 1750 Spyder

Coachbuilder: Zagato
Chassis Num: 10814402
Model Year: 1932
Profile and Auction History
Spyder
Alfa Romeo 6C 1750 Spyder

Coachbuilder: Zagato
Chassis Num: 6C10814391
Model Year: 1932
Profile and Auction History

Grand Sport Spider
Alfa Romeo 6C 1750 Grand Sport Spider

Coachbuilder: Touring
Model Year: 1933
Profile
Spider
Alfa Romeo 6C 1750 Spider

Coachbuilder: Zagato
Chassis Num: 10814313
Engine Num: 10814313
Model Year: 1933
Profile and Auction History
Gran Sport Cabriolet
Alfa Romeo 6C 1750 Gran Sport Cabriolet

Coachbuilder: Castagna
Chassis Num: 121215037
Engine Num: 121215037
Model Year: 1933
Profile and Auction History

Grand Sport Spider
Alfa Romeo 6C 1750 Grand Sport Spider

Coachbuilder: Touring
Chassis Num: 121215050
Model Year: 1933
Coupe
Alfa Romeo 6C 1750 Coupe

Coachbuilder: Figoni
Chassis Num: 121215054
Model Year: 1933
Profile


Vehicle information, history, And specifications from concept to production.
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