For anyone buying a car in the U.S.
A ready-to-use calculator and a word-for-word playbook for the dealership. See every tax, fee and add-on in one number, compare up to 3 offers, and keep the talk on the total, not the monthly payment.
Checkout opens soon. Nothing can be bought on this page yet.
Real screens from the kit, shown with fictional example numbers.
The problem
Fees, taxes and add-ons stack up at the bottom of the quote, often when you're tired and ready to sign. Meanwhile the conversation keeps drifting to the monthly payment.
“Those add-ons are already installed on the car.”Marty, our (fictional) salesman. The playbook has your reply.
Buyer's quote illustration
$1,892 of add-ons, plus the tax on them. Fictional numbers for illustration.
Try it now
Type a car price and tap the add-ons a dealer might put on the quote. This is a quick estimate; the full calculator in the kit goes line by line.
What's inside
Type in what the dealer gives you. The sheet adds it up and shows the one number that matters.
The plan for the whole purchase, from your first email to signing day.
The same calculator with a fictional deal already filled in, so you see how it works before you type, and a one-page guide with a 6-step quick start.
Tap any page to look closer
When they say…
Three of the 13 replies in the playbook. Calm, polite, and always back to the out-the-door price.
They say“What monthly payment are you looking for?”
You say“I'm not discussing monthly payments. I'm only negotiating the out-the-door price. What's your best out-the-door number?”
They say“This price is only good today.”
You say“If it's a good price today, it will still be a good price tomorrow. Please put it in writing with an expiration date and I'll decide by then.”
They say“Let me go talk to my manager.”
You say“Sure. When you come back, please bring the out-the-door price in writing. If it's not there, I'll head out and we can continue by email.”
Maya and Marty are the fictional characters from our videos.
How it works
Get pre-approved, then send the email template to a few dealers asking for an itemized out-the-door price in writing.
Enter up to 3 quotes. Compare totals, decline the add-ons you don't want, and see what each payment really costs.
Keep the calculator open on your phone, follow the order in the playbook and run the F&I checklist before you sign.
Fair question
A lot of good advice is. What it isn't: organized, in one place, and ready to use while you're sitting across the desk.
Average add-on total on new-car quotes that had add-ons1
$1,454
The Dealer-Proof Car Buying Kit, one-time
$12
We can't promise you'll pay less; every deal is different. The kit makes every line visible so you decide with the full picture.
This kit is an educational tool and is not legal or financial advice. Fees, taxes and rules vary by state.
We don't promise any specific savings or outcome: every deal, dealer and buyer is different. The kit helps you see your real numbers so you can decide.
Questions
Anything else? Write to [SUPPORT EMAIL].
Right after payment you're taken to your download page with four files: the calculator (blank and a filled-in example), the 24-page playbook and a one-page Start Here guide. Stripe also emails you a receipt.
If you close the page before downloading, email [SUPPORT EMAIL] with the email you used at checkout and we'll send your files.
Yes. Upload the calculator to Google Drive once and open it in the free Google Sheets app (iPhone or Android) to type the dealer's numbers as you go. The playbook is a PDF that opens on any phone.
No. The calculator is an Excel (.xlsx) file that also works in the free Google Sheets (the steps are inside the file), Apple Numbers and LibreOffice.
Much of the advice is out there for free, and that's great. Here you get all of it in one place, in the order you'll use it, plus a calculator that's ready to use at the dealership, so you don't have to do the math or hunt for the right video while you're at the desk.
We can't promise any amount, and we won't. Every car, dealer, state and credit situation is different. What the kit does is show your real out-the-door price, line by line, so you can compare offers, spot add-ons you don't want and decide before you sign.
Yes, because you enter your own numbers: your sales tax, title and registration and fees (they're on the dealer's written quote), and you answer three Yes/No questions about your state's tax rules. The calculator doesn't look up rates for you. Fees, taxes and rules vary by state.
Both. The calculator works for any purchase price, and the playbook includes a two-page used-car checklist.
The kit is built for buying a car, with cash or a loan. It doesn't calculate lease payments.
Usually not. According to the FTC, its Cooling-Off Rule does not give you a 3-day right to cancel a car bought at a dealership3. That's why the kit is about getting the numbers right before you sign.
No. This kit is an educational tool and is not legal or financial advice. For questions about a specific contract or loan, talk to a qualified professional in your state.
No. It's a one-time payment of $12 in U.S. dollars, and the files are yours to keep. Nothing is shipped; it's a digital download.
[REFUND POLICY] Details in our Refund Policy.
An out-the-door calculator and a word-for-word playbook, for a one-time $12.
Checkout opens soon. Nothing can be bought on this page yet.