Car Buying Research Hub
Every tool, calculator, and guide you need to buy a car with confidence.
Core Tools
Our flagship products for smarter car buying.
CarWhere Research Studies
Original data studies from verified deals, federal complaint records, and NHTSA recall filings. Journalists: datasets available on request — [email protected].
The Recall Burden Index
4,129 NHTSA recall campaigns, 352.7M vehicles, 2016–2026: Ford leads every brand, the F-150 is the most-recalled model, and 1 in 3 recalls is now a software fix.
The Discount Reality Index
3,502 verified signed deals: the median buyer gets 6% off MSRP, only 1.1% pay over sticker, and RAM buyers negotiate 5× deeper than Kia buyers.
The Complaint Census
429,585 federal complaints across 178 models: electrical systems have overtaken engines as the #1 thing that breaks, and the worst model year runs 18.8× its own baseline.
The Dealer Fee Index
What dealers charge in doc fees in every state — statutory caps, real medians, and the states where fees run wild.
Dealer Add-On Statistics
How often dealer quotes arrive padded with add-ons — and what the average stack costs before you say no.
Negotiation Savings Study
How much verified buyers actually negotiated off MSRP, by brand and model — the baseline every shopper should know.
Cheapest Cars to Own
Annual fuel cost for every current model from EPA data: EVs average ~$2,600/yr less to fuel than gas cars, with the cheapest and priciest models ranked.
Auto Loan Complaints
105,000+ CFPB complaints about auto lenders: 2025 set a record, billing is the #1 problem, and under 3% of complaints end with money back.
EV Charging Cost by State
What home-charging an EV really costs in all 50 states — about $1,074/yr nationally vs $3,434 for gas, from EIA electricity prices and EPA efficiency data.
EV Registration Fees by State
The annual surcharge 42 states bill electric cars instead of gas tax — from $0 to $274 — plus each state’s total fee-plus-charging running cost.
Incentives & Lease Deals
Manufacturer rebates, lease cash, and special offers.
Take Action
Upload a deal or start negotiating.
VIN & Vehicle Safety
Decode any VIN, check recalls, and verify the math — all powered by official NHTSA data.
VIN Decoder
Decode any 17-character VIN for full vehicle specs, plus verified buyer prices and a Claude-generated insight.
Recall Check
Look up open NHTSA safety recalls by VIN or by year/make/model. Free, real-time, official data.
VIN Validator
Verify any VIN passes the ISO 3779 check-digit math. Catch typos and forged VINs before you buy.
VIN Decoder by Make
28 manufacturer-specific decoders — Toyota, Honda, Ford, BMW, Tesla, and more. Each with WMI lookup and sample VIN.
Calculators
Crunch the numbers before you buy.
Start Here
Essential guides for every car buyer.
What Should You Actually Pay for a Car?
How to find your target price using real buyer data — before you step into a dealership.
How Much Can You Negotiate Off MSRP?
What real buyers are negotiating off sticker price, by brand and model.
How the CarWhere Index Works
Our pricing methodology — how we calculate target discounts from verified deals.
How to Avoid Dealer Add-Ons
Spot and decline unnecessary dealer fees, packages, and markups.
In-Depth Guides
Comprehensive guides backed by real buyer data.
First-Time Car Buyer Guide
Everything you need to know about buying your first car — from budgeting to paperwork.
How to Buy a Used Car
Step-by-step guide to buying a used car without getting ripped off.
Electric Car Buying Guide
Range, charging, battery health, and what EV buyers actually paid — updated for 2026.
Should I Lease or Buy?
Compare costs, pros/cons, and find the smartest choice for your situation.
How to Get Out of a Car Lease
All your options for ending a lease early — transfer, buyout, or termination.
Car Down Payment Guide
How much to put down on a car — with strategies to save thousands.
Bank vs Dealer Financing
Compare bank, credit union, and dealer loans to find the best rate.
Credit Score & Car Buying
What credit score you need and how it affects your auto loan APR.
Car Rebates & Incentives
How to find and stack manufacturer rebates, loyalty bonuses, and dealer cash.
Dealer Fees Explained
Which dealer fees are legit and which ones you should refuse.
How Much Can You Negotiate?
Realistic discount percentages by vehicle type based on verified buyer data.
Guides & Articles
In-depth guides for every stage of the car buying process.
How to Negotiate a New Car Price
Step-by-step negotiation tactics that save buyers thousands on average.
How to Negotiate a Car Lease
Key lease terms you can negotiate — money factor, residual, and cap cost.
How to Negotiate a Used Car Price
Tactics for getting the best price when buying used from a dealer or private seller.
Understanding Dealer Fees
Which dealer fees are legit and which ones you should push back on.
What Is Out-the-Door Price?
Understand every line item on a dealer quote so you know exactly what you're paying.
What Is a Good Deal on a New Car?
Learn how to benchmark any dealer offer against real market data.
Car Invoice Price Explained
What dealer invoice really means and how to use it in negotiations.
Zero Percent Financing: Is It Worth It?
When 0% APR is a great deal and when cash rebates save you more.
Car Depreciation: What to Expect
How much value cars lose by year and which vehicles hold value best.
Best Time to Buy a Car
When to buy for the biggest discounts — by month, day of week, and model year cycle.
How Much Car Can I Afford?
Use the 20/4/10 rule and real budget math to figure out a comfortable car payment.
Will Car Prices Drop in 2026?
Market trends, inventory levels, and what to expect for new car pricing this year.
First-Time Car Buyer Guide
Everything you need to know about buying your first car — from budgeting to paperwork.
How to Trade In a Car
Get the most for your trade-in — when to sell privately vs. trade at the dealer.
Should You Lease or Buy?
Compare the true cost of leasing vs buying over 3–7 years for your situation.
How to Get Out of a Car Lease
Your options for ending a lease early — transfer, buyout, or early termination.
For developers & AI agents
Free, CORS-enabled VIN + pricing API. Drop into a ChatGPT GPT Action, Claude tool, or MCP server.
Want to know what buyers actually paid?
Use the CarWhere Index to see real verified car deals near you.