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1930 Alfa Romeo 6C 1750 GS Navigation
This six-cylinder engine found in the 1750 was a dual overhead cam unit that was enhanced with the help of a Roots-Type supercharger. The 1750 had an advanced chassis and an unrivalled competition record. The 1750's were also renowned for their exceptional styling, having received coachwork from Europe's most exclusive custom coachbuilders.
This example (a 1933 model that is titled as a 1930), chassis number 121215033, is a very early 6th Series Grand Sport, of which only 44 were built. Introduced in 1933, these late-production 1750s received many of the features found on the new 6C 1900 GT, including a boxed chassis, third- gear synchromesh, a slightly taller radiator and updated instrumentation. The result of these improvements added greater comfort and mechanical sophistication, while retaining the sporting characteristics of the early models.
Castagna of Milan was tasked with outfitting this car with a Drop Head coupe body, reminiscent of the contemporary long-chassis 8C 2300s. In the back are dual rear-mounted spares and long, sweeping fender lines.
The car was discovered in the British Zone following World War II. It is believed that the car was built for a customer in Germany. The car was fortunate to survive the duration of the war, though it did receive a hole in the middle of the passenger door, which was caused by artillery fire.
The car was imported in the summer of 1955. On August 4th it was registered OMJ 480 to Chiltern Cars Ltd. and by the end of the month, it had been sold to Robert Thomas. It was acquired by George Simpson of Kent on September 5th of 1957 only to sell it to Frederick James Keeling a short time later. In June of 1959, it was acquired by Kenneth Koupal, by then the car had been refinished in red.
When Mr. Koupal moved to the United States, he brought with him. Once in the states, he dismantled the car with hopes of completing a comprehensive restoration. The car remained with him for more than four decades, though the restoration was never completed. The car was sold in 2002 to French collector Dr. Bruno Lafourcade.
Between 2003 and 2009, the car was given a complete restoration. Upon completion, the car was displayed at the 2010 Avignon Motor Festival as a tribute to Vittorio Jano's contributions to the centenary of Alfa Romeo.
The car was purchased by an American collector in 2010. The car is currently finished in black with contrasting red beltline and upholstery.
In 2012, this vehicle was offered for sale at the Gooding & Company auction in Scottsdale, Arizona. The car had an estimated value of $750,000 - $850,000. As bidding came to a close, the car had been sold for the sum of $781,000 inclusive of buyer's premium.By Daniel Vaughan | Jan 2012
This example (a 1933 model that is titled as a 1930), chassis number 121215033, is a very early 6th Series Grand Sport, of which only 44 were built. Introduced in 1933, these late-production 1750s received many of the features found on the new 6C 1900 GT, including a boxed chassis, third- gear synchromesh, a slightly taller radiator and updated instrumentation. The result of these improvements added greater comfort and mechanical sophistication, while retaining the sporting characteristics of the early models.
Castagna of Milan was tasked with outfitting this car with a Drop Head coupe body, reminiscent of the contemporary long-chassis 8C 2300s. In the back are dual rear-mounted spares and long, sweeping fender lines.
The car was discovered in the British Zone following World War II. It is believed that the car was built for a customer in Germany. The car was fortunate to survive the duration of the war, though it did receive a hole in the middle of the passenger door, which was caused by artillery fire.
The car was imported in the summer of 1955. On August 4th it was registered OMJ 480 to Chiltern Cars Ltd. and by the end of the month, it had been sold to Robert Thomas. It was acquired by George Simpson of Kent on September 5th of 1957 only to sell it to Frederick James Keeling a short time later. In June of 1959, it was acquired by Kenneth Koupal, by then the car had been refinished in red.
When Mr. Koupal moved to the United States, he brought with him. Once in the states, he dismantled the car with hopes of completing a comprehensive restoration. The car remained with him for more than four decades, though the restoration was never completed. The car was sold in 2002 to French collector Dr. Bruno Lafourcade.
Between 2003 and 2009, the car was given a complete restoration. Upon completion, the car was displayed at the 2010 Avignon Motor Festival as a tribute to Vittorio Jano's contributions to the centenary of Alfa Romeo.
The car was purchased by an American collector in 2010. The car is currently finished in black with contrasting red beltline and upholstery.
In 2012, this vehicle was offered for sale at the Gooding & Company auction in Scottsdale, Arizona. The car had an estimated value of $750,000 - $850,000. As bidding came to a close, the car had been sold for the sum of $781,000 inclusive of buyer's premium.By Daniel Vaughan | Jan 2012
2012 Gooding and Company - The Scottsdale Auction
Pre-Auction Estimates :
USD $750,000-USD $850,000
Sale Price :
USD $781,000
2010 RM Auctions - Sporting Classics of Monaco
Pre-Auction Estimates :
€550,000-€650,000
Sale Price :
USD $744,688 (€ 560,000.00)
1930 Alfa Romeo 6C 1750 GS Auction Sales
Recent Sales of the Alfa Romeo 6C 1750 GS
(Data based on Model Year 1930 sales)
1930 Alfa Romeo 6C 1750 Gran Sport Spider in the style of Zagato Sold for USD$390,000 2022 RM Sothebys : Monterey | |
1930 Alfa Romeo 6C 1750 Grand Sport Chassis#: 8513030/28 Sold for USD$1,323,087 2015 Bonhams : Les Grandes Marques du Monde au Grand Palais | |
1930 Alfa Romeo 6C 1750 GS Testa Fissa Chassis#: 8513089 Sold for USD$1,245,580 2012 RM Auctions - London | |
1933 Alfa Romeo 6C 1750 Gran Sport Drop Head Coupe Chassis#: 121215033 Sold for USD$781,000 2012 Gooding and Company - The Scottsdale Auction | ![]() ![]() |
1930 Alfa Romeo 6C 1750 GS Spider by Zagato Chassis#: 8513064 Sold for USD$990,000 2011 RM Auctions - Automobiles of Amelia Island | ![]() ![]() |
1930 Alfa Romeo 6C 1750 GS by Castagna Chassis#: 121215033 Sold for USD$744,688 2010 RM Auctions - Sporting Classics of Monaco | ![]() ![]() |
1930 Alfa Romeo 6C 1750 GS by Zagato Chassis#: 8513064 Sold for USD$1,169,160 2010 RM Auctions - Sporting Classics of Monaco | ![]() ![]() |
1930 Alfa Romeo 6C 1750 GS Zagato Chassis#: 8513064 Sold for USD$1,265,000 2008 Gooding & Company | ![]() ![]() |
1930 Alfa Romeo 6C 1750 GS Zagato Sold for USD$1,107,000 2008 Bonhams & Butterfields Sale of Exceptional Motorcars and Automobilia | ![]() ![]() |
1930 Alfa Romeo 6C 1750 Series IV Grand Sport Spyder Sold for USD$880,000 2008 Worldwide Auctions - Houston Classic 2008 | |
1930 Alfa Romeo 6C 1750 Grand Sport Sold for USD$1,100,000 2005 Worldwide Auctions - Houston Classic 2005 |
Alfa Romeo 6C 1750 GSs That Failed To Sell At Auction
1930 Alfa Romeo 6C 1750 GS's that have appeared at auction but did not sell.
Vehicle | Chassis | Event | High Bid | Est. Low | Est. High |
---|---|---|---|---|---|
1930 Alfa Romeo 6C 1750 Gran Sport Series IV Spider in the style of Zagato | 2025 RM Sothebys : ModaMiami | $700,000 | $900,000 | ||
1930 Alfa Romeo 6C 1750 Gran Sport Spider | 8513033 | 2023 Bonhams : Quail | $1,000,000 | $1,500,000 | |
1930 Alfa Romeo 6C 1750 Gran Sport Fourth Series Testa Fissa Two Seater Sports | 8513025 | 2022 Bonhams : The Quail Auction | $1,600,000 | $1,800,000 | |
1930 Alfa Romeo 6C 1750 Gran Sport Spider in the style of Zagato | 8513053 | 2020 RM Sothebys : Shift/Monterey | $700,000 | $900,000 | |
1930 Alfa Romeo 6C 1750 Gran Turismo Series IV Spider in the style of Zagato | 8613481 | 2020 RM : The European Sale featuring the Petitjean Collection | $400,000 | $450,000 | |
1930 Alfa Romeo 6C 1750 Gran Sport Spider in the Style of Zagato | 8513034 | 2020 RM Sothebys : Paris | $900,000 | $1,300,000 | |
1930 Alfa Romeo 6C 1750 4th Series Supercharged Gran Sport Spider | 8513033 | 2019 Bonhams : Les Grandes Marques du Monde au Grand Palais | $1,200,000 | $1,600,000 | |
1930 Alfa Romeo 6C 1750 Gran Sport roadster Corsica | 8513049 | 2019 Artcurial : Retroobile | $900,000 | $1,400,000 | |
1930 Alfa Romeo 6C 1750 Gran Sport Spider | 8513001 | 2017 RM Sothebys : Villa Erba | $2,200,000 | $2,600,000 | |
1930 Alfa Romeo 6C 1750 Gran Sport Spider | 8513048 | 2016 RM Sotheby's : Monaco | $900,000 | $1,200,000 | |
1930 Alfa Romeo 6C 1750 Gran Sport Spider | 8513033 | 2012 Bonhams The Monaco Sale 'Les Grandes Marques à Monaco' | $850,000 | $950,000 | |
1930 Alfa Romeo 6C 1750 Gran Sport Spyder | 8513033 | 2011 Bonhams Automobilia, Motos de collection et Automobiles d'exception au Grand Palais | $950,000 | $1,250,000 | |
1930 Alfa Romeo 6C 1750 GT 4th/5th Series Tourer | 8613507 | 2010 Bonhams Goodwood Revival, Chichester, Sussex | $100,000 | $130,000 | |
1930 Alfa Romeo 6C 1750 4th Series GS Spider | 8513078 | 2010 Bonhams Automobiles d'Exception á Rétromobile | $550,000 | $650,000 |
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1993 Porsche 911 Turbo S Lightweight Chassis#:WP0ZZZ96ZPS479075 Sold for $997,811 2024 RM Sothebys : London | |
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1930 Alfa Romeo 6C 1750 GS
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1930 Alfa Romeo 6C 1750 GS Vehicle Profiles
Spyder
Designer: ZagatoTesta Fissa Spyder
Coachwork: A.E. LeadbetterDesigner: George Easton
Chassis #: 8513025
Engine #: 8513025