What is a Carchieve vehicle history report?

A Carchieve report is a complete safety and records check on any U.S. vehicle. Enter the 17-character VIN and you get the decoded vehicle identity and full specifications, every open safety recall, owner-reported complaints by system, official NHTSA crash-test ratings, and a buyer action plan, in one clean report and a downloadable PDF.

How is Carchieve different from a typical VIN lookup?

Carchieve doesn't just dump raw data. It authenticates the VIN, organizes every federal safety record into a buyer-ready dossier, scores the vehicle, and tells you exactly what to inspect, ask and verify before you pay, the way a careful mechanic would read the car.

How fast will I get my report?

Reports are generated in under a minute. As soon as your VIN is checked against the recall, complaint, ratings and identity databases, your report and PDF are ready to view and download.

Can I buy more than one report?

Yes. A single report is $24.99. If you're comparing several cars, the 3- and 5-report bundles save you money per report and the extra credits stay in your account until you use them.

What information do I need to run a report?

Only the 17-character Vehicle Identification Number (VIN). The VIN is on the lower-left corner of the windshield, the driver-side door jamb, and the vehicle title or registration.

Where does the data come from?

Every report is built from authoritative U.S. vehicle databases, including the National Highway Traffic Safety Administration (NHTSA) recall, complaint and 5-Star safety-rating programs and the federal VIN product information catalog. Carchieve authenticates the VIN check digit so you know the identity is genuine.

Can I share the report with a seller or mechanic?

Yes. Every report includes a professionally formatted PDF you can download, print, or forward to a private seller, dealer, or mechanic to support your buying decision.

Most Fuel-Efficient Used Cars (2026): MPG & Fuel Cost Ranked

The most fuel-efficient used gas car among popular models is the 2020 Nissan Sentra at 33 mpg combined (about $1,900 a year in fuel). Hybrids and EVs go further still. Here's the ranking on EPA data.

#	Vehicle	Combined MPG	City / Hwy	Est. annual fuel cost
1	2020 Nissan Sentra	33	29 / 39	$1,900
2	2020 Toyota Corolla	33	30 / 38	$1,900
3	2020 Nissan Altima	32	28 / 39	$1,950
4	2020 Hyundai Elantra	32	29 / 38	$1,962
5	2020 Honda Civic	32	28 / 37	$2,042
6	2020 Hyundai Sonata	31	27 / 37	$1,983
7	2020 Toyota Camry	30	26 / 37	$2,125
8	2020 Honda Accord	29	26 / 35	$2,140
9	2020 Chevrolet Malibu	29	26 / 34	$2,450

Gas, hybrid or electric?

These are conventional gas cars. Step up to a used hybrid and combined economy jumps into the 40s and 50s (see the hybrid ranking); a used EV drops fuel cost to a few hundred dollars a year (cheapest cars to fuel). Which wins depends on your mileage, charging access and up-front budget.

Methodology & sources

Figures are official EPA estimates from fueleconomy.gov: combined MPG (or MPGe for electric), estimated annual fuel cost (EPA's 15,000-mile/year assumption at recent national fuel prices), and EPA driving range for EVs. Where a model offers several drivetrains we show the model average, so treat these as at-a-glance comparisons, not a substitute for the exact trim's window sticker. Data snapshot July 2026. Free to cite with a link to this page.

Fuel economy is only half of ownership cost. Before you buy, also check the car's recall record and run its VIN with Carchieve for open recalls, owner complaints and safety ratings.

Check the exact car before you buy

These are model averages. The car in the driveway has its own history — run its 17-character VIN through Carchieve for open recalls, complaint patterns and safety ratings, then use our 24-point used car buying checklist.

Frequently asked questions

What used car gets the best gas mileage?

Among mainstream gas sedans, the 2020 Nissan Sentra leads at 33 mpg combined. Hybrids like the Prius and Camry Hybrid go much further — into the 40s and 50s — and used EVs skip fuel entirely.

Is it worth buying a hybrid used car for the fuel savings?

If you drive a lot of city miles, usually yes. A hybrid returning 50 mpg versus a 30-mpg gas car can save $700-$1,000 a year in fuel. The used price gap is smaller than when new, which shortens the payback.

How much does fuel economy really save per year?

Going from 25 to 35 mpg at 15,000 miles a year saves roughly 170 gallons annually — several hundred dollars at typical prices, and more if fuel prices rise.