One of the Greatest Sport Sedans of All Time
If you make a list of the best high-performance sedans, cars like the BMW M3 will inevitably appear, regardless of generation. The thing is, there are far more great performance four-doors out there, and we say the Giulia Quadrifoglio deserves to be there.
And what’s not to like about the Alfa Romeo? It’s got a Ferrari-derived engine wrapped in a sedan package, effectively making it a modern-day Lancia Thema 8.32. The difference is that the Giulia Quadrifoglio is rear-wheel drive, so you can get genuine tail-out action from it. It also helps that its chassis is genuinely well-balanced and the steering is wonderfully communicative.

Alfa Romeo
A Solid Foundation
The Giulia Quadrifoglio is a great driver’s car, so it’s no surprise that its platform has been used in pretty special builds over the years. A recent example is the 55-SGT that turned the Giulia into a homage to the 155 DTM from the ’90s. Even Alfa Romeo had fun with the platform when it built the Giulia SWB Zagato as a one-off for a very special client.
Now, another coachbuilder wants to turn the sport sedan into something completely different. The coachbuilder’s name is Castagna Milano, and it reckons it can build a roadster out of the Giulia Quadrifoglio.
The Plan
Castagna Milano has been around for nearly 180 years, evolving from building horse-drawn carriages to cars. It’s no stranger to bespoke vehicles, so building a roadster from a sedan is well within the company’s wheelhouse. The unique car doesn’t have a name just yet, but it should be revealed in due course.
That said, Castagna Milano needs a backer to make the project move forward. What you’re looking at isn’t the final product, but a 3D render of what it could look like if the build is allowed to proceed. But while we wait for that to happen, the coachbuilder has laid out some details of the car.
Its floorplan will be based on a Giulia, but the body on top will be completely different. The dash-to-axle distance has been stretched by nearly 13 inches, pushing the front seats back closer to the rear wheels. The design is bespoke, with a soft top for a true classic vibe. As for the engine, it’s the same Ferrari-derived 2.9-liter twin-turbo V6, so we’re expecting at least 505 hp and 443 lb-ft of torque. All it needs now is someone to fund this one-off project so it can hit the road.

Castagna Milano/Instagram

Castagna Milano/Instagram