Know What It's Worth
Field Guide · First Edition Get the Guide — $49

A Field Guide for Owners and Buyers

Most classic cars aren't what the seller says they are.

Badges are cheap. Tags get replaced. “Numbers matching” means four different things depending on who's saying it — and the gap between a real car and a well-built tribute is usually five figures. This is the fifty-page field guide that shows you how to tell the difference yourself, in about twenty minutes, with a flashlight.

50
Pages
20 Min
Field check time
30-Day
Refund guarantee
Cover of Know What It's Worth, showing a red 1965 Ford Mustang fastback below the title and the subtitle ‘Authenticating, valuing, buying and selling American classics’.

“Markets pay for proof. They discount stories.”

Chapter One

The Guide

One method. Three decisions. Fifty pages.

Where every identifying number is stamped on a GM, Ford or Chrysler classic. What each one means. How to tell when somebody has changed them. Then what to do about it — buy it, sell it, or keep it and protect it. Set in large type and laid out to be printed and kept with the car.

The Gap

What proof is worth, in dollars.

Two cars can share a body, a colour, an engine size and a model year, and be separated by a factor of three at the auction block. The difference is never the paint. It's what can be proven.

A zero in any column collapses the product. A pristine car with a doubtful identity is a pristine doubt.

Value=Identity×Condition×Documentation

Scarcity does the first half of the work. Provability does the second half — because a rare configuration that cannot be proven is, at sale time, indistinguishable from a common one wearing its clothes. A factory document costing under a hundred dollars routinely moves a sale price by thousands: it converts a story into a fact.

What's Inside

Fifty pages, and what's on them.

Part One · Chapters 1–6

Establishing what you have

  1. 01Why identity determines value — clone, tribute, and the real car
  2. 02Where the numbers live — VINs, tags and plates by marque and era
  3. 03Drivetrain verification — casting numbers and date-code logic
  4. 04“Numbers matching” — the honest definition, and what each tier is worth
  5. 05Factory documentation — Marti, PHS, build sheets, registries
  6. 06Condition tiers and reading comparable sales
Part Two · Branch A

Buying

  1. 01The pre-purchase inspection, in order of what actually costs money
  2. 02Negotiating from evidence rather than from opinion
  3. 03Title traps — and the ones that follow the car forever
  4. 04Getting it home: transport, insurance, first-week checks
Part Two · Branch B

Selling

  1. 01The channels, ranked by what you actually keep
  2. 02Fees, buyer's premiums, and the worked net-proceeds example
  3. 03The documentation package — your price, assembled
  4. 04Recognizing the flipper's lowball, element by element
Part Two · Branch C

Keeping

  1. 01Insurance — agreed value, or you are not insured
  2. 02Storage — the slow-motion claims: moisture, fuel, tires, rodents
  3. 03The file your family can actually use
  4. 04The keeper's annual twenty minutes
Back Matter · Worksheets

Four pages to fill in

  1. 01Vehicle identification record — every number, decoded
  2. 02Condition assessment, graded area by area
  3. 03Comparable sales tracker, with the valuation sentence
  4. 04Documentation checklist — the family file
Back Matter · Reference

Where to send it

  1. 01Marti Auto Works — Ford, Lincoln and Mercury records
  2. 02PHS Automotive Services — the Pontiac packet
  3. 03GM Heritage Archive and the vehicle invoice service
  4. 04Stellantis Historical Services — Chrysler-built cars
  5. 05Marque clubs, registries and the auction results archives
  6. 06Glossary of the terms that move money

Look Inside

Four pages from the book.

Where This Comes From

Records, not rumours.

The book's front-matter page headed ‘Where this information comes from’, listing factory documentation, published decoders and registries, and auction house records as its only sources.
The book's second page, before any of the method starts: every class of source it is allowed to use.

Every fact in this guide traces to something you can check: factory build records, marque registries, and published auction results. Not forum posts. Not sellers' listings. Where a detail couldn't be verified, we cut it — and tell you which registry can verify it for your specific car.

If you find an error, tell us. We'll correct it and send the update to everyone who owns a copy, free.

Order

$49 once. Instant download. Yours forever.

Cover of Know What It's Worth, showing a red 1965 Ford Mustang fastback, a fifty-page field guide to authenticating and valuing American classics.

Field Guide · 50 Pages · First Edition

Know What It's Worth

Authenticating, valuing, buying and selling American classics. One method for establishing what a car genuinely is — and three clear paths for what to do next.

$49

One payment

  • The fifty-page field guide
  • Four printable worksheets
  • The resource directory of registries and documentation services
  • Every future correction and revision, free
Get the Guide — $49

Instant download · Pay once · Yours forever

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Questions

Before you order.

Is this a physical book?

No — it's a PDF you download the moment you pay. It's designed to be printed if you'd rather read on paper, and most people do.

Does it cover my car?

American classics from the nineteen fifties through the nineteen seventies — GM, Ford and Chrysler products. The method works on any of them.

Do I need to be a mechanic?

No. The checks need a flashlight, a cloth, and a camera or phone.

Will it tell me exactly what my car is worth?

It teaches you to establish that yourself from real sold prices. It won't quote a number for your specific car, because nobody honestly can without seeing it.

How do I get it after I pay?

Instantly, by download and by email. You can re-download it any time.

Can I print it?

Yes — it's built for that, on standard US Letter paper.

What if I don't like it?

Email me within thirty days and I'll refund you. No questions.

Last Call

Find out what you've actually got.

$49 once. Instant download. Thirty-day refund, no questions asked.

Get the Guide — $49