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The model bible · Investor Dossier & Technical CompendiumThe engineering, the buying process, the market data and working sheets for the model you want, in one volume, running to between 250 and 600 pages depending on the edition. The technical compendium exists for every 911 model; 21 editions are complete with a current investor dossier and available immediately. Please note: the compendium is published in German only. An English edition does not exist at present, and none is planned for the time being.
The Dossier & Market Compendium is the model-specific basis for your decision on the model you want: weak points, engine codes, PPI checklists, an options matrix and price forecasts, for each specific 911 model. It brings two works together in one volume: the technical compendium for the substance and the investor dossier for the market.
pages per edition
incl. VAT
delivered digitally once payment is received
Each edition is cut to one model, from the Carrera RS 2.7 to the 991.2 GT3 Touring. The engineering, the weak points, the specification and the market data in the volume all apply to that model alone.
Illustrations of the design, shown as examples. The page count and data date of each edition are in the list below; what you receive is a PDF, not a printed book.
This is how deep a compendium goes. The table of contents of the largest edition, the Dossier & Market Compendium on the 993 Turbo, shows the structure: from the prologue through six parts to the appendices. Open the parts to see inside.
The technical compendium exists for every 911 model, from the original 911 to the 992. For 21 editions the investor dossier is also finished with current data; those we deliver immediately once payment is received. For every other model we produce the investor dossier with current market data and deliver within two to five working days, depending on workload.
Available immediately: a finished edition with a current market section, sent by email directly once payment is received. Immediately + update: you receive the existing edition at once and, within two to five working days depending on workload, the version with the updated investor dossier. Dossier in preparation: the technical compendium is finished, the investor dossier is being produced with current market data; delivery within two to five working days, depending on workload.
Your model is not on the list? Name it when you order: the technical compendium exists, and we produce the investor dossier with current market data, delivered within two to five working days depending on workload. Finished editions we deliver immediately once payment is received; where their data is more than three months old, the updated version follows within two to five working days, depending on workload. Every edition is written in German.
Three building blocks make the compendium a basis for decisions: a valuation system, the market analysis and the tools for practice.
The compendium's valuation matrix, derived for the particular model and applied to typical car profiles.
Part 5 of every compendium: the market in figures, from price development to exit strategy.
The tools for the viewing and the purchase, to work with directly at the car.
„Sowohl im Dossier, als auch in der Kommunikation geht Thomas Ottenstroer unglaublich detailliert und zeitaufwendig auf jeden einzelnen Punkt ein. […] 911finder ist unverzichtbar für jeden, egal ob Amateur wie ich oder erfahrener Sammler.“ (English: "Both in the dossier and in his communication, Thomas Ottenstroer goes into every single point in incredible detail and at considerable effort. […] 911finder is indispensable for anyone, whether an amateur like me or an experienced collector.")
Diddledumdai · Google review
„Unverzichtbarer Kontakt für jeden, der sich für ein Porschefahrzeug interessiert! Das Dossier lässt keine Fragen offen.“ (English: "An indispensable contact for anyone interested in a Porsche. The dossier leaves no question unanswered.")
I R · Google review · All reviews on Google
Tell us the model you want through the contact form and choose the subject Dossier. Finished editions we deliver immediately once payment is received; for every other model we produce the investor dossier with current market data, delivered within two to five working days, depending on workload.
Name the model, pay, receive the PDF by email. The 21 finished editions we deliver immediately once payment is received. For every other model we produce the investor dossier with current market data and deliver within two to five working days, depending on workload; the same applies where a finished edition's data is older.
incl. VAT
Secure payment through Stripe; the payment methods on offer are shown at the payment step. An invoice showing VAT follows by email.
Digital content and the right of withdrawal: If you wish to receive the digital product before the fourteen-day withdrawal period has expired, you must expressly agree that we may begin performing the contract before that period ends. At the same time you confirm that you are aware that you lose your right of withdrawal once provision of the digital content begins. Without these declarations, the content is generally provided only after the withdrawal period has expired. This applies to both ordering routes; the details are in Part C of the Terms and Conditions.
Prefer to pay by bank transfer or PayPal? Write to us using the Contact form or at kontakt@911finder.de, giving the model and your billing address. You will receive an invoice with the payment details, and we deliver once payment has arrived.
Still getting your bearings? Our price reports on price trends by model family are freely available. The compendium is the next step, once a particular model is on your list.
Price trends by model family, from Carrera through Turbo and GTS to GT3, GT3 RS and GT2 RS: data-led reports for an overview of the market, at no cost.
The model-specific analysis in depth: the engineering, the buying process, the 100-point score, the investor dossier and the checklists, brought together for exactly the model you want.