The air-cooled 911. Reimagined by hand in Germany.

PRINZIP R is a German atelier building one-of-one Porsche® 911s® in hand-formed steel. Every car starts with a single owner's brief and is engineered to be driven. We take on only a handful of commissions a year.

Formed by hand.
Formed in steel.
Formed for you.

Carbon is lighter. We chose steel anyway. The 911 was born in steel - and forming each body by hand gives the finished car the heft, the sound, and the honesty it's meant to have.

Recently completed commissions

Black classic Porsche 911 parked inside an empty industrial warehouse.

R64

Anthracite grey commission

A 964 taken back to the shape of its ancestors. Hand-formed steel, modern under the skin.

Bluebird

A 930 Turbo, reborn. 600 hp, 5 speed gearbox, custom KW clubsport suspension, tailored retro interior. An engineering masterclass.

Dark blue classic Porsche sports car with wide tires and bronze wheels on a white background.

R+ OEM-Plus

Midnight Mirage

Reimagined with a 4.0L air-cooled flat-six producing 400 HP, RS-inspired suspension, and over 100 kg weight reduction.

“Behind the wheel you notice: that's how real, unadulterated speed works.”

Dr. M.S.

Surgeon and Entrepreneur

Porsche OEM Plus Build by PRINZIP R (R+) side view in front of an impressive architecture

How a commission works

Martin Anders of Prinzip R standing in front of a project closeup

We talk

You tell us about the car you can't stop thinking about

We find the foundation

The right donor, .yours, or one we source together.

We design and engineer it around you

Hand-formed steel, a coherent direction, real test miles.

We hand it over

And the relationship continues. You become part of a very small circle.

What NHL player Josh Morrissey has to say about our commission process.

Founder-led, one-off commissions

Every PRINZIP R project begins with a private conversation. Our founders personally shape each commission around your vision, intended use, donor car, and desired driving character.

Analog soul with top-class engineering

Engine, suspension, brakes, steering, cooling, and road behavior are developed around your intended use of the car, so the final result feels precise, reliable, and alive.

Built to reconnect driver and machine

We remove what distracts, reengineer what matters, and refine every detail to reconnect the driver with the road, the machine, and the feeling modern cars have lost.

Limited number of commissions

A small number of cars a year, each one finished the way it deserves.

At PRINZIP R you're more than a client.

PRINZIP R was founded by Martin Anders and Marco Hinderer to fulfill air-cooled dreams.
Each project gets hand-picked so we can give it our full passion and dedication.
Our owners aren't just clients, they are people who carry the same passion.

At PRINZIP R, you won’t just be a client. You’ll be the name on the car.

PRINZIP R was founded by Martin Anders and Marco Hinderer for one reason: to build the air-cooled 911 you can’t stop thinking about.
Each project is hand-picked. Each car carries the name you choose.
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When the car is handed over, the relationship isn’t.
You join a circle measured in dozens, not hundreds.

Martin Anders

Co-founder

Marco Hinderer