Carfax is generally the strongest choice for U.S. used-car buyers who want the deepest accident and service-history detail, while AutoCheck is a solid lower-cost alternative that sometimes catches auction data Carfax misses — the two often complement rather than replace each other. Which one is "better" really depends on what you're checking for and how much you're willing to spend.
Quick Comparison Table
| Provider | Typical Price | Key Strength | Best For |
| Carfax | ~$25–$40/report | Deepest accident + service history network | Private-party used car purchases |
| AutoCheck | ~$25–$35/report | Strong auction/wholesale data, AutoCheck Score | Buyers cross-checking dealer-sourced cars |
| CarGurus | Often free with listing | Convenient bundled reports on listings | Browsing marketplace listings |
| Bumper | ~$20–$30/report | Budget-friendly, VIN + plate lookup | Price-sensitive buyers |
| Experian (AutoCheck's parent umbrella) | Varies | Ties into credit/financial history tools | Buyers also financing through Experian-linked lenders |
| CarVertical | ~$20–$25/report | International/European vehicle history | Imported or overseas vehicles |
| Kelley Blue Book | Free (valuation only) | Valuation, not history reports | Pricing research, not accident history |
Carfax vs AutoCheck
Both pull from overlapping but non-identical data sources — DMVs, insurers, and auctions — so a car can occasionally show slightly different details between the two. AutoCheck also generates an AutoCheck Score, a numeric comparison against similar vehicles, which Carfax doesn't offer. For a high-stakes purchase, running both is a reasonable extra layer of due diligence, especially since the combined cost is still small relative to a car purchase.
Carfax vs CarMax and CarGurus — Are They Related?
Carfax, CarMax, and CarGurus are three separate, unrelated companies. The naming similarity is coincidental:
- Carfax — a vehicle history report provider
- CarMax — a used car retailer/dealership chain
- CarGurus — an online car listing/marketplace platform
CarGurus and many other listing sites do partner with Carfax to include a free report directly on vehicle listings, which is likely the source of the confusion.
Carfax vs Bumper
Bumper is generally the more budget-friendly option and supports both VIN and license plate lookups, similar to Carfax. Its data depth is typically narrower than Carfax's, particularly for detailed service history, making it a reasonable choice for buyers prioritizing cost over exhaustive detail.
Carfax vs CarVertical
CarVertical is particularly useful for vehicles with an international history — imported cars, or those previously registered in Europe — since it pulls from data sources Carfax doesn't have strong coverage of outside North America.
Which Should You Actually Use?
- Buying a used car privately in the U.S.? → Carfax first, AutoCheck as a second opinion if the price supports it
- Buying from a dealer/marketplace listing? → Check if a free Carfax or AutoCheck is already included before paying for your own
- On a tight budget? → Start with Bumper or a free NMVTIS title check, upgrade to Carfax only if the car passes that screen
- Buying an imported or European-market vehicle? → CarVertical will have more relevant coverage
The Bottom Line
There isn't a single universally "best" provider — Carfax leads on data depth for domestic vehicles, but pairing it with a second, cheaper service is a smart move for any purchase where the history genuinely matters.
FAQs
Is Carfax better than AutoCheck?
Neither is definitively better — they draw from overlapping but different data, so using both gives more complete coverage for high-stakes purchases.
Are Carfax and CarMax the same company?
No, they are entirely separate companies with no ownership relationship — Carfax provides vehicle history reports, CarMax sells used cars.
Is CarGurus the same as Carfax?
No — CarGurus is a car listing marketplace that partners with Carfax to include free reports on some listings, but they are separate companies.
Which is cheaper, Carfax or AutoCheck?
Pricing is broadly similar between the two, though promotions and package sizes vary — compare current prices directly before purchasing.