We realize your 911® dream

Would you like to fulfill your individual 911 dream at last or perhaps for the second time? Are you dreaming of a gentleman racer, a mountain pass machine, a track-day racer, a daily driver or an investment? Do you want to do everything right and have high standards of quality and care?

From support with procurement to restoration, rebuilding, backdating or partial overhaul - your dream is our main focus and we are in your corner at all times.

Prinzip R

Finding the right partner for a Porsche® 911® restoration is not always easy

Porsche restoration, backdating or rebuilding - not everyone can do everything

The market for Porsche® 911® Restoration, refurbishment, backdating and customization are characterized by exorbitantly high prices, long waiting lists, workshops and dealers with dubious customer orientation and seriousness.

Separating the wheat from the chaff in this scene and making the right decisions, from the right choice of model to the right choice of partner, requires a lot of experience and "tuition paid", an excellent network and consistent customer orientation.

We founded PrinzipR to close this gap.

Marco Hinderer | Porsche® Expert and enthusiast for over 30 years
The mind behind Prinzip R

Marco Hinderer

The head of PrinzipR is Marco Hinderer - a strong enthusiast for Porsche® and over the years keeper, optimizer and collector of over 30 Porsche® 911®. Each one has been restored, improved or otherwise individualized and optimized. He now offers these years of experience and the network that has grown out of it via PrinzipR to interested enthusiasts who want to save themselves a lot of time, money and negative experiences. He sees himself as an independent consultant and dream realizer - what could be better than the joy of a satisfied customer with a successfully realized 100% individual project?

Call Marco directly at +49 (0)172-7220364 or write a message via WhatsApp.

Next to and behind Marco is the power of our team. This is made up of experienced specialists from all trades, who also contribute modern digital visualization and customer consulting methods and always provide you with empathetic and comprehensive information and advice.


Your way to a customized 911

We realize your dream car in six steps.


It all starts with your dream - we will be happy to find the details together, depending on the desired purpose, e.g. cafe racer, cozy cruiser, gentleman racer for the country road or track toy.


Like an architect or interior decorator, our team will guide you through the entire process to achieve your individual vision, from A for ABS to Z for "Zentralverschluss" (center locking rims). Individual paint samples, leather and fabric samples as well as high-end 3D visualization videos are used as required.

Base vehicle

We usually find a suitable base vehicle (if not already in stock) within a few days and support you with the purchase. We also provide you with access to our off-market network and professional expertise during any viewings and inspections.


We take care of everything: planning, dismantling, spare parts, assembly, paintwork, upholstery work, service and MOT. Our work is meticulous and passionate, so that every vehicle shines in all its glory at the end. You will be kept informed of the individual work steps on an ongoing basis.

Individual refinement & modernization

In addition to the restoration, you also have the option of specifying a backdate body kit, a more modern chassis, an electric air conditioning system, a surround hi-fi system or a performance upgrade. We provide you with highly individualized advice based on the best available technology worldwide - as we can work independently with the best suppliers for each requirement.

Completion & enjoyment

It's done! You will receive your individual Porsche® 911® dream upgraded and improved handed back with great care. Now you can start and experience the restored and optimized driving pleasure, the unique sound and enjoy the realization of your vision in color and form. Have fun living your dream! The work carried out is of course covered by a comprehensive warranty and the vehicle is easy to maintain and service.

We also take on partial work steps

Of course, you can also just go through individual steps of this process with us and do the rest on your own, or commission us to carry out a partial restoration or engine overhaul, for example. Simply get in touch with us - we will be happy to discuss your individual requirements.

Customer testimonials

What others say about us.

We are happy to establish direct contact with reference customers on request.

5.0 4 Rezensionen

Top service, high level of expertise and valuable advice.
M. Long
Very nice team, who gave me top advice and support with the acquisition and restoration of my Recaro seats.
C. Achermann
Very good advice, great ideas, lots of experience. The right address for 911 Backdate.
Dr. M. Krech

The PrinzipR RS Guarantees

In addition, we offer you our RS guarantees, which you will rarely find elsewhere.

Really-Good Guarantee

In cooperation with the responsible technical company, we provide 2+1 year(s) warranty on all work (excluding wear and tear parts). This warranty can then be extended for EUR 1,600 per year for up to a further four years.

So-Fast Guarantee

We promise you a restoration time from the start of a maximum of 14 months.


The benefits of working with us

Genuine passion
Our team has a total of more than 100 years of Porsche® Experience in the areas of conversion, restoration, technology and each team member is also owner of a Porsche.® Also he or she is owner and rebuilder of their Porsche® vehicles - so we experience daily what we talk about.
Independence and objectivity
We advise you comprehensively, innovatively, independently and always objectively. We are not committed to individual partners, but to you.
Experience and network
Our network of German partners is currently predominantly in southern Germany, so we support the local economy, utilize short distances and the established experience of our partners. Of course, we also use international specialists if required.
Best customer service & accessibility
We focus entirely on your wishes, modern or classic, email, telephone or Whatsapp, you as a customer and partner are always the center of attention. We advise and support you before, during and after the restoration or new construction - always holistically and comprehensively.
Save time, money and hassle
Replace them with joy - we are fast and efficient, thanks to securing capacities in advance at preferential conditions. So we are both fast and offer fair pricing.
Become part of a growing community of PrinzipR-enhanced vehicles and their owners. More and more customers are becoming part of the PrinzipR community, with whom we enjoy the common ground on trips and at events - purely voluntarily, of course.
With a restoration, you are deciding against the production of a new vehicle and thus opting for a sustainable approach to automobility. Paint and chemicals are disposed of or recycled according to the highest German standards.
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See for yourself

Tell us your name, email and your request and we will get back to you faster than a 911.

PrinzipR and our partner companies present Porsche® 911® of all model years according to our customers' instructions. PrinzipR does not manufacture or sell its own cars, but only restores and optimizes basic vehicles provided by the customer, predominantly of the Porsche brand® and type 911®.

PrinzipR is not sponsored, associated, licensed or endorsed by Porsche® Germany or the "Dr. Ing. h.c.F. Porsche® AG". The Porsche name and coat of arms®, 911® and TARGA® are trademarks of Dr. Ing. h.c.F. Porsche® AG and all other products mentioned are trademarks of their respective owners. Any mention of trademarked names or other brands is for reference and information purposes only.

The result of the meticulous and painstaking work carried out by PrinzipR and its partner companies is a Porsche restored and redesigned by PrinzipR and its partner companies® 911®. Out of respect for Porsche® and around Porsches® To respect trademark rights, this great automobile should never under any circumstances be referred to or described as "PrinzipR", "PrinzipR 911", "PrinzipR Porsche 911" or "Porsche PrinzipR 911", or in any other way that would imply that it is anything other than a Porsche restored and restyled by PrinzipR® 911® on the basis of a donor vehicle.