Numenia
MotorCrunch is published by Numenia, a company registered in Brazil under CNPJ 64.983.905/0001-01. Numenia builds and maintains the site's car-cost calculators and guides. Every figure traces to a typed provenance registry (official sources such as FRED, EIA and state DMV/DOR fee schedules), the formulas are pure, unit-tested TypeScript, and each guide's changelog is derived from the repository's real commit history. We publish under the registered company name rather than invented expert bylines. Contact: suporte@numenia.xyz.
How this content is produced
- Every number traces to a typed provenance registry of official sources — see data sources and methodology.
- Guides carry a changelog derived from the repository's real commit history — the dates shown are actual edit and data-refresh events, not marketing stamps.
- Standards, corrections policy and what we will not publish are documented in the editorial policy. Corrections: corrections@themotorcrunch.com.
- All figures are estimates for guidance — never quotes, never financial advice. See the disclaimer.
Guides by Numenia
15 published guides, each linked to the calculators that turn its advice into your own numbers.
How to never overpay for a car loan
Four levers move what a car loan really costs, and the dealer hopes you only notice one of them.
9 min read · last edited 2026-07-03EV vs gas: the real 2026 numbers
An EV can save you thousands or cost you thousands, and the deciding factor is usually where you charge.
10 min read · last edited 2026-07-05What rideshare really pays after costs
The fare on your screen and the money you keep are two very different numbers, and the gap is mostly your car quietly wearing out.
8 min read · last edited 2026-07-03How insurers actually price your premium
Your premium is a math problem about risk, and a handful of factors do most of the work, while the ones you obsess over barely move it.
9 min read · last edited 2026-07-03The truth about car depreciation
Depreciation is the largest cost of owning a car, larger than fuel, insurance, or repairs, and almost nobody budgets for it.
7 min read · last edited 2026-07-03Lease vs buy: a decision framework
Leasing and buying aren't good or bad; they answer different questions, and the right one depends on how you actually use a car.
8 min read · last edited 2026-07-03How much should you spend on a car
The right number isn't a payment you can squeeze into your budget; it's a total cost your income can absorb without strain.
8 min read · last edited 2026-07-03Is an electric car worth it for high-mileage drivers
High annual mileage is where the EV math flips hardest, because every cheap electric mile repays the higher purchase price faster.
9 min read · last edited 2026-07-03The hidden costs of financing a car
The monthly payment is the one cost a dealer wants you to see; these are the four or five that quietly cost you more.
9 min read · last edited 2026-07-03How to compare two cars before buying
The cheaper sticker often loses once you add up five years of depreciation, fuel, insurance, and repairs, so compare the cost of owning, not the price of buying.
9 min read · last edited 2026-07-05How to refinance your car loan (and when it actually saves money)
Refinancing can shave thousands off a car loan or add years of interest for a smaller payment. The difference is whether you keep the term.
8 min read · last edited 2026-07-05What credit score you need for a good car loan rate
The gap between a good score and a poor one on the same car can be worth more than a decent down payment.
8 min read · last edited 2026-07-05Is gap insurance worth it, or a dealership upsell?
Gap insurance is genuinely worth it for a specific kind of buyer, and quietly overpriced for everyone the dealer sells it to.
7 min read · last edited 2026-07-05How to lower your car insurance premium without dropping real coverage
Most people can cut their premium by shopping and adjusting a few settings, without gutting the coverage that protects them.
8 min read · last edited 2026-07-05New vs used car: which is actually cheaper to own?
New cars lose their biggest chunk of value in the first years. Buy after that drop and someone else paid for it.
8 min read · last edited 2026-07-05