The Bumper Automotive Guide

Forensic advice for buying, maintaining, and protecting your vehicle.

I am BUYING a car

Don't get ripped off. Get the used car inspection checklists, negotiation scripts, and scam warnings you need to win.

I OWN a car

Take care of your car. Learn the maintenance secrets and repair tips that keep your car running well.

Articles For You

Switch between buying and ownership, narrow by topic, or search the library—same forensic lens as the rest of Bumper Car Advice.

Free vs. Paid VIN Checks: The Hidden Cost of "Free" Reports

What NMVTIS, NHTSA, dealer CARFAX, and commercial previews actually show — and what free vehicle history checks leave out compared to paid reports.

Best Vehicle History Report (2026): CARFAX vs. AutoCheck vs. Bumper

How Bumper, CARFAX, AutoCheck, and the NMVTIS portal compare on data coverage, pricing, and clarity — so you can pick the right report for your search.

Bumper vs. CARFAX: Which Vehicle History Report Is Better?

An honest comparison of Bumper and CARFAX for used car buyers: data coverage, NMVTIS, pricing, service records, and when each product makes sense.

Dealer Fees Explained: Which Are Legitimate, Which Are Negotiable, and Which to Refuse

Car fees can be legitimate, negotiable, or hidden. Learn to identify each type so you only pay what’s valid and avoid unnecessary charges.

Trade-In Strategy: How to Get What Your Car Is Actually Worth

Learn how to handle a trade-in separately, track the real numbers, and avoid losing value in bundled dealer negotiations.

Car Negotiation Scripts: Word-for-Word Lines That Could Save You Money

Car negotiation scripts for real scenarios. Learn exactly what to say, using facts like VIN reports and inspections to keep leverage on your side.

Bumper provides forensic automotive advice to help consumers make informed decisions. Whether you're buying your first car or maintaining a fleet, our expert guides cover financing, inspections, negotiations, maintenance, repairs, recalls, and emerging automotive technology.