Keep It or Kill It?
Fix Your Car or Replace It?
The Math Decides.
Got a repair and not sure what to do? We've built The Witch to help you figure that out. She helps you track and evaluate your repair history, compares your options to alternatives, and gives you the information straight, so you can make an informed choice.
Run the Analysis
Full five-year cost comparison
Enter your car, your repair history, and up to three vehicles you might buy instead. We project all-in ownership costs for each and tell you which is cheaper — and by how much.
Track It Over Time
Ongoing ownership tracking
Log repairs as they happen. The Garage plots your cumulative spend against the statistical ceiling for a vehicle of your make, age, and mileage — so you can see, over time, whether continuing to repair still makes financial sense.
Find Replacement Cars
Browse by make and model
Not sure what you'd replace your car with? Browse complaint rates and federal crash test ratings by make, model, and year — before you have a specific contender in mind.
The Numbers
Data & Findings
Original analysis from our own datasets — EPA fuel economy records, NHTSA safety data, and real dealer prices. One finding per piece. Sources published.
May 8, 2026
Where You Buy Your Used Car Matters
Used car prices vary by more than 16 percentage points across US states after controlling for vehicle type, age, and mileage. Analysis of 66,750 dealer listings: Alaska, Hawaii and the Pacific Northwest are the most expensive markets; New Jersey and Florida are the cheapest.
May 3, 2026
The Truck Belt: Where Trucks Dominate Dealer Inventory
Pickup truck share in dealer inventory ranges from 8% in Florida and New Jersey to nearly 40% in Wyoming — a 5× gap that reshapes used car prices across state lines. Analysis of 65,939 dealer listings reveals where trucks are cheap, where they're expensive, and why Iowa is the biggest surprise.
April 19, 2026
The Gas Mileage Ceiling: Why a Newer Gas Car Won't Lower Your Fuel Bill
ICE fuel efficiency has flatlined at 22.8 MPG since 2017. Analysis of 27,849 EPA vehicle records shows that buying a newer gas car delivers no meaningful fuel savings over a 2018–2020 model. The only exit is a hybrid.
Ready to run your own numbers?
Built on BLS actuarial data, EPA fuel economy figures, live fuel prices, and NHTSA's public safety database. See the methodology →
Start the Analysis →