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Decision · 10 min Analyzer

Car Decision Analyzer Ritual

True cost per month — depreciation or lease payments, interest, fuel, insurance, maintenance and expected repairs, spread over the years you will keep it — keep, buy new, buy used or lease, the same way.

$17one-time · VAT included · no subscription
Free files
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Download page opens right after payment + links by e-mail. No account.
Excel 2016+ / Microsoft 365 · Google Sheets (upload to Drive)
Light + Dark · USD GBP EUR AUD CAD INR · PLN pricing — every edition in one download
Free updates forever · 14-day refund
Part of the Complete Collection — 119 workbooks, every edition, future releases, $99.
The ritual page

What the file tells you

The payment is not the cost. This sheet prices keeping your old car, buying new, buying used and leasing the same way — depreciation, interest, fuel, insurance, repairs — over the years you will actually keep it, and tells you which is cheapest, which you can afford, and which number is a guess.

01 · verdictTrue cost — over the horizon, everything included, vs the cheapest option
02 · verdictCash — payment plus running costs per month against your cap, and what you put down
03 · verdictThe guess — repairs on the old car, resale value on a purchase, the mileage cap on a lease
Sheets in the workbook
Analyzer · pick an option: true cost per month, three verdicts, three checks
Options · keep, buy, lease — one line each
Settings · kilometres a year, fuel price, horizon, cash down, monthly cap
How it works
1Set your driving and your limits — km per year, fuel price, years you will keep it, cash you can put down, monthly cap
2Add every option as one line — keep the old one is always the first line
3Pick an option on Analyzer — true cost per month, CHEAPEST / CLOSE / EXPENSIVE, what to check
Who it is for

Anyone about to sign for a car who suspects the monthly payment is hiding something.

Dark edition included
Car Decision Analyzer Ritual — dark edition
Do I need Excel?

Excel 2016+ or Microsoft 365. Or upload the .xlsx to Google Drive — it opens in Sheets with formulas and charts intact.

Can I pay with BLIK?

Yes — BLIK, Przelewy24, any card, Apple Pay, Google Pay and PayPal. Prices in PLN, EUR, USD or GBP; the currency switch is at the top.

Invoice for my company?

Tick “I’m purchasing as a business” at checkout and enter your NIP / VAT ID. The invoice arrives with the download e-mail.

What if it isn’t for me?

14-day refund, no questions. One e-mail to [email protected].

Pairs well with

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