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Alfa Romeo 6C 1750 GS Spider Castagna

Chassis

#8513078

The Alfa Romeo 6C 1750 GS Spider Castagna.

Vehicle Overview

The Alfa Romeo 6C 1750 GS chassis 8513078 is one of those cars that effortlessly weaves together history, craftsmanship, and raw driving passion. First hitting the road in Milan on July 19, 1930, it wasn’t just any Alfa—it was born to stand out, and not just because of its pedigree. This car had the soul of a racer and the elegance of a hand-tailored suit, thanks to the vision of Carrozzeria Castagna. Back in the day, the Alfa Romeo 6C 1750 GS was already a legend in the making. It was quick, agile, and had a reputation for dominating the racing scene. But this particular car took things a step further. At some point in its early life, it got an upgrade—out went the standard 1750 engine, and in came the more potent supercharged 6C 1900 6th Series engine. That swap meant more power, more speed, and a whole new attitude. It’s like giving a marathon runner a turbo boost—suddenly, it wasn’t just fast; it was fierce. Now, pair that performance with the styling chops of Carrozzeria Castagna, and you’ve got something truly special. Castagna wasn’t just any coachbuilder—they were the big leagues in Italy, known for working with top-tier brands like Isotta Fraschini, Mercedes-Benz, and, of course, Alfa Romeo. By the time this Alfa came into their hands, Castagna had already built a reputation for making cars that looked as good as they performed. And they didn’t disappoint here. They shaped the car into a sleek, sporty two-seater—perfect for a weekend blast through the Italian countryside. The body was all about flowing lines and graceful curves, but it wasn’t just pretty. It was built to move, with a design that kept it light and nimble. The long hood, flared fenders, and minimalist cockpit screamed speed, but there was still that touch of Italian class—like a racer that knows how to clean up for a night out. Originally registered with the plate ‘MI 28360’, the car’s papers even noted that it was a custom job by Castagna, and that’s something you don’t see every day. Castagna itself had a storied past—founded in the mid-19th century when Carlo Castagna took over a carriage business from a guy named Ferrari (no relation to Enzo). Over the years, they transitioned from building horse-drawn carriages to creating some of Italy’s most stylish and luxurious motor cars. But the early 1930s hit them hard. The collapse of Isotta Fraschini—one of their biggest clients—was a blow they never quite recovered from. By the early 1950s, Castagna was out of the game, though they made a comeback in the 1990s. But back when this Alfa was being built, Castagna was still at the top of their game, and it shows. The Alfa Romeo 6C 1750 GS Castagna isn’t just a car; it’s a statement—a nod to an era when racing machines were still crafted by hand and designed to make hearts race just as fast as engines.

Technical Specifications

  • Body
  • Year
    1930
  • Make
    Alfa Romeo
  • Model
    6C 1750 GS Spider
  • Coachbuilder
    Castagna
  • Length (mm)
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  • Width (mm)
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  • Units built
    1
  • Engine Type
    6L
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  • DESIGNER
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