That's not what PriceHub said.

Like real estate site Zillow, PriceHub aspires to bring price transparency to a sector that thrives on inflated numbers: used cars. PriceHub is currently in beta.

PriceHub reveals transactions made on used cars, including model year, mileage, condition, location, sale date, and actual sale price. Users that recently purchased a car can add their transaction and vehicle data to the database.

While car buyers can refer to invoices, MSRP prices, book and trade-in values, there is no single source of real car transaction prices, reports Springwise.

The service is young but PriceHub's commitment to transparency may already affect how private sellers market vehicles. The company blog cited craigslist car listings where PriceHub quotes were used to justify the asking price.