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Meet Henk Spin And The Mysterious Factory One-Off Porsche 356 He Discovered And Restored

by Jordan Aquistapace
August 1, 2025
in Porsche News
A white vintage Porsche 356 coupe is parked indoors on a black mat, surrounded by automotive memorabilia and classic car decor.

This 1958 Porsche 356 A Coupé turned out to be a forgotten factory one-off with a weird and wonderful backstory.

Adding to the excitement of buying a new-to-you car comes the unique stories of its existence on the road, whether it be a special edition model with rare options or a race-worthy classic with motorsport significance. And while you’d believe that most of these stories would be uncovered and advertised to add to the value, there are rare occasions when untold stories, for the better, unfold at the hands of the new owner. When Dutch collector Henk Spin picked up a weathered Porsche 356 A Coupé, he figured it would be a straightforward restoration.

A classic white Porsche 356 coupe driving on a coastal road with headlights on and a German test license plate visible.

But he realized this Porsche had a story as he began digging through the car’s odd details, like painted trim, non-standard toggles, and some unusual handwritten notes. A deep dive into Porsche’s archives confirmed that this example was one of just eight “Schmidt cars,” built for a quirky German engineer in the late 1950s. The discovery kicked off a ten-year rabbit hole of tracking down unrecognized parts, colors, and even documentation to bring this one-off back to its original shape, right down to the Porcelain White paint and an in-car phone system that somehow existed in 1958.

A close-up view of a vintage car’s interior, showing a cream-colored seat, red patterned door panel, and beige carpeted floor.

Reinhard Schmidt, the original owner, wasn’t your average Porsche collector. Working for ATE, he had enough pull to ask the factory for a laundry list of oddball features, most of which wouldn’t be seen on production cars for years. Stuff like rally spotlights, Carrera gauges, a Junghans clock by the tach, electric windshield washers, and a functioning car phone (which back then required its own license and cost as much as a second car). The result is a dashboard that looks more like a fighter jet than a sports car. The car was even featured in Christophorus back in the day, showing off just how strange and forward-thinking it was for its time.

A collection of open magazines and documents on a table, featuring car schematics, photos, and articles, including an image of the Leaning Tower of Pisa.

Today, Spin’s 356 sits tucked away in his Porsche-filled garage, surrounded by a Macan, a Cayman S, and a soon-to-be-restored 911 T. But the “Schmidt car” clearly stands apart from the others. It’s the kind of build that came together with help from Porsche Classic and a lot of conversations with other obsessive owners and historians. Even the yellow “Versuchswagen” plates had to be replicated from old photos. This was a slow-burning research project that brought one very oddball Porsche back into the light. And now, 65 years after it left the factory, it’s finally telling its story again.

View All Porsche 356s For Sale

 

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A vintage white Porsche 356, possibly a Secret One-Off by Henk Spin, is parked on a cobblestone street in front of a brick building with red and black shutters.
A man kneels outside a classic car, cleaning the interior with a towel. The car has red and beige upholstery, and another car is visible through the open door.
Close-up of a vintage Porsche dashboard featuring cream steering wheel, analog gauges, ignition key, and textured red-brown dashboard trim.
Close-up of a vintage car dashboard showing speedometer, gauges, push-button controls, and a radio, with a brown patterned top section visible.
Close-up of a vintage Lorenz radio communication device with several dials, switches, and indicator lights, mounted below a brown patterned dashboard.
A set of hand tools neatly organized in a compartment under a car seat with red and beige upholstery.
View of a classic Porsche engine compartment with visible air filters, wiring, and engine components, taken from behind with the rear hood open. The Porsche logo is on the lower edge.
A white vintage Porsche 356 is parked on a cobblestone street in front of old brick buildings, partially obscured by a green metal fence—a secret one-off envisioned by Henk Spin.

Source: Porsche

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