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In 1930, the Grand Sport was Alfa Romeo's fifth series 6C and their most capable sports-racing car. Fitted with competition bodyworks, Tazio Nuvolari drove one to an overall victory at the IV Coppa delle Mille Miglia. Giuseppe Campari repeated this feat in 1931 with his.
The 6C 1750 Grand Sport benefitted from Vittorio Jano's brilliant engineering and design principles. One of the biggest changes introduced was a modified Roots-Type supercharger that operated at engine speed and with larger rotors. With no step gear, it ran slower and therefore spun the opposite direction which relocated the carburetor from the left to the right side of the manifold. With its supercharger, the 1750 Grand Sport was an invincible race car, one with ample torque for its small chassis.
The supercharged engine is a water-cooled, double-overhead-cam 6-cylinder, developing 85 horsepower and capable of 90 miles per hour when coupled to the four-speed manual transmission.
A total of 369 Super Sports and Grand Sport 6C 1750s were built.
The 6C 1750 Grand Sport benefitted from Vittorio Jano's brilliant engineering and design principles. One of the biggest changes introduced was a modified Roots-Type supercharger that operated at engine speed and with larger rotors. With no step gear, it ran slower and therefore spun the opposite direction which relocated the carburetor from the left to the right side of the manifold. With its supercharger, the 1750 Grand Sport was an invincible race car, one with ample torque for its small chassis.
The supercharged engine is a water-cooled, double-overhead-cam 6-cylinder, developing 85 horsepower and capable of 90 miles per hour when coupled to the four-speed manual transmission.
A total of 369 Super Sports and Grand Sport 6C 1750s were built.
No auction information available for this vehicle at this time.
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 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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1930 Alfa Romeo 6C 1750 GS
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1930 Alfa Romeo 6C 1750 GS Vehicle Profiles
Testa Fissa Spyder
Coachwork: A.E. LeadbetterDesigner: George Easton
Chassis #: 8513025
Engine #: 8513025
Spyder
Designer: Zagato
