Spyder
Coachwork: Touring
Chassis #: 0312901
Engine #: 0312901
Sold for $692,500 at 2021 RM Sothebys : Monterey.
Vittorio Jano joined Alfa Romeo in 1923. His first creation at Alfa was the P2, which enjoyed much success on the Grand Prix circuits, and was largely based on Jano's experience with Fiat's Tipo 805 Grand Prix car of 1923. The Alfa Romeo P2 was followed by a line of passenger cars to succeed the Giuseppe Merosi-designed RL and RM. Merosi's L-head 6- and 4-cylinder cars - by this point in history - had become dated and required a replacement. Jano responded with a 1.5-Litre six-cylinder that set new standards for lightweight high-performance motorcars, the 6C 1500. The iron cylinder block and head were each single piece castings. The block is mated to a light alloy crankcase. It was initially a single camshaft design; Jano added a twin-cam head, designated 'Sport', and used for performance applications. A shaft and bevel gear drive was used for the 6C's cams. In its basic 'Sport' configuration, the 6C 1500 produced 54 horsepower at 4500 RPM. The series eventually grew to 1900 CC and power - with the help of a supercharger - rose to over 85 horsepower. The chassis was lightweight and low-to-the-ground. It was given a semi-elliptical spring setup that passed through the front axle. The 6C 1500 in its naturally aspirated and supercharged versions would go on to claim numerous victories over much larger and more powerful machinery. Among the successful 6C 1500 pilots was Enzo Ferrari who, at the time, was employed by Alfa.
In 1929, Jano's 6C was increased in displacement to 1752cc by increasing both bore and stroke from 62mm x 82mm to 65mm x 88mm.
In the post-War era, the car was purchased by Hugh Gearing. Mr. Gearing continued its racing career, and on one occasion, it was loaned to Juan Manual Fangio to drive at a South African event. In November of 2012, it was acquired by its current caretaker who submitted it to Automotive Restorations, Inc. of Stratford, Connecticut for a complete and accurate mechanical restoration. Specialists from David L. George Historic Motorcars of Cochranville, Pennsylvania, were commissioned to execute the rebuild of the supercharger.
By Daniel Vaughan | Oct 2014
1929 Alfa Romeo 6C 1750
Alfa Romeo
2021 RM Sothebys : Monterey
Pre-Auction Estimates :
USD $800,000-USD $900,000
Sale Price :
USD $692,500
2015 Barrett-Jackson - Scottsdale
Lot was not sold
2014 Gooding & Company : Pebble Beach Concours
Pre-Auction Estimates :
USD $1,400,000-USD $1,900,000
Sale Price :
USD $836,000
2009 Greenwich Concours d'Elegance, Collectors' Motorcars and Automobilia
Lot was not sold
1929 Alfa Romeo 6C 1750 Auction Sales
Recent Sales of the Alfa Romeo 6C 1750
(Data based on Model Year 1929 sales)
1929 Alfa Romeo 6C 1750 Super Sport Chassis#: 0312901 Sold for USD$692,500 2021 RM Sothebys : Monterey | ![]() ![]() |
1929 Alfa Romeo 6C 1750 Turismo by James Young Chassis#: 0411875 Sold for USD$252,554 2015 Historics at Brookland | |
1929 Alfa Romeo 6C 1750 SS Spider Chassis#: 0312901 Sold for USD$836,000 2014 Gooding & Company : Pebble Beach Concours | ![]() ![]() |
1929 Alfa Romeo 1750 SS Competition Tourer Chassis#: 0312906 Sold for USD$1,782,372 2012 Bonhams - Collectors' Motor Cars and Automobilia | |
1929 Alfa Romeo 6C 1750 SS Supercharged Spyder Chassis#: 0312897 Sold for USD$582,008 2012 Bonhams - Collectors' Motor cars and Automobilia at Goodwood | |
1929 Alfa Romeo 6C 1750 Turismo Chassis#: 6C0412061 Sold for USD$171,304 2011 RM Auctions - London | |
1929 Alfa Romeo 6C 1750 GS Sold for USD$854,340 2009 RM Auctions - Automobiles of London | |
1929 Alfa Romeo 6C 1750 3rd Series Turismo Drop Head Coupe Chassis#: 0412061 Sold for USD$143,000 2009 Pebble Beach Auction : Gooding & Company | ![]() ![]() |
Alfa Romeo 6C 1750s That Failed To Sell At Auction
1929 Alfa Romeo 6C 1750's that have appeared at auction but did not sell.
Vehicle | Chassis | Event | High Bid | Est. Low | Est. High |
---|---|---|---|---|---|
1929 Alfa Romeo 6C 1750 Supercharged Super Sport Spider | 0312931 | 2019 Bonhams : The Bond Street Sale | $800,000 | $1,200,000 | |
1929 Alfa Romeo 6C 1750 SS 3e série Zagato | 0312955 | 2018 Artcurial : Retromobile | $900,000 | $1,300,000 | |
1929 Alfa Romeo 6C 1750 3e série Turismo par James Young | 6C 0412061 | 2017 Artcurial : Retromobile | $210,000 | $250,000 | |
1929 Alfa Romeo 6C 1750 Super Sport Supercharged Spider | 0312861 | 2016 Bonhams : The Monaco Sale | $1,800,000 | $2,400,000 | |
1929 Alfa Romeo 6C 1750 Super Sport | 0312905 | 2016 Rétromobile 2016 by Artcurial Motorcars | $1,350,000 | $1,550,000 | |
1929 ALFA ROMEO 6C 1750 SS | 0312901 | 2015 BarrettJackson Scottsdale | |||
1929 Alfa Romeo 6C 1750 Spyder Supersport | 0312961 | 2011 Bonhams Automobilia, Motos de collection et Automobiles d'exception au Grand Palais | $750,000 | $950,000 | |
1929 Alfa Romeo 6C 1750 SS Super Sport Two Seater | 0312901 | 2009 Greenwich Concours d'Elegance, Collectors' Motorcars and Automobilia |
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1929 Alfa Romeo 6C 1750
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