1957 356A 1500 Carrera GT

A stunning restoration with an extra four-cam engine

The Porsche four-cam engine traces its roots to the company’s racing program, where Ernst Fuhrmann developed the complex dual-overhead-camshaft design for the 550 Spyder in the early 1950s. Designed to extract maximum performance from a small-displacement flat-four, the engine quickly proved itself in competition, powering Porsche to class victories around the world. The four-cam made its debut in the 356 lineup in 1955 with the Carrera, bringing race-car technology to the street. Expensive to build and maintain, but incredibly advanced for its day, the Fuhrmann four-cam remains one of the most significant engines in Porsche history.

This 1957 356A Carrera GT was presented in rare factory-correct Aquamarine Blue over Black leatherette with contrasting Gray corduroy inserts. Subject to a concours-level restoration spanning more than fifteen years, the car has reportedly covered fewer than ten miles since completion and while currently fitted with a 1,582cc flat-for for testing purposes, it was sold with a Type 547/3 four-cam engine no. P90156/666, originally fitted to the 1960 RS-60 Werks Prototype Spyder chassis 044. Its documentation file is equally impressive, including the Porsche Kardex, Reutter body records, factory production documents, and a fascinating Cuban racing history dating back to 1958.

Over the past twelve months, we’ve only seen one other 356A Carrera GT Coupe cross the block in the U.S., and it failed to sell at a final bid of $500,000. Looking a bit further back, another example sold for $401,000 at Gooding’s Amelia Island sale in 2025. Our Spotlight Car brought $511,000 all-in, a result that feels well-bought given the quality of the restoration, the attractive Aquamarine Blue color, and the exceptional documentation and history that accompanied the car.

You may have a more expensive watch in your drawer. But this will be the one on your wrist.

Two things that always go hand in hand are Porsche and watches. Every Porschephile I know is also a watch nerd, and just like Porsches, watches can be enjoyed at all price points.

Enter Jay Turkbas, founder of Sheffield Watches. Jay approached me two years ago when he was relaunching his new microbrand, inspired by his original Sheffield watch from the 1970s. He took that inspiration and paired it with more than 30 years in product development to bring back the classic Sheffield Dive Watch line, a name once known for honest, low-price-point quality in 1950s New York.

Today Sheffield Watches has grown to more than 20 models and has partnered with names like Spike Feresten of Spikes Car Radio and Jay Leno, with one of my favorites, the Jay Leno’s Garage Driver’s Watch. Throughout that growth, Jay has kept the same Sheffield philosophy alive, creating watches at accessible price points that outperform expectations in build quality and performance. Give Sheffield Watches a look. I think you will be just as impressed as I am.To read the FULL Stuttgart Market Letter, with Noteworthy Sales (and No Sales), New Listings, and a full rundown of every Porsche sold today, subscribe below.