China-based used car marketplace Guazi.com has come under fire from consumers who allege that it provided false inspection reports and shirked responsibility for after-sales service, BiaNews.com reports.

Alleged examples include inspection reports concealing information about accidents, worn-out parts and malfunctioning systems. Some buyers say that vehicles sold as ‘almost new’ are reclassified into the ‘bottom-price clearance’ category after buyers report serious faults discovered during follow-up inspections. Guazi refuses to accept returns for cars in this category.

Responding to criticism, Guazi said that users do not understand the difference between vehicle-inspection reports and data gathered by a vehicle’s onboard diagnostics (OBD) system. Due to the varying brands of OBD systems and inconsistent data analysis capabilities, the company explained, this data often does not align with its inspection results, and assessing a vehicle’s condition requires considering the actual situation.

However, buyers of faulty cars argue that they made their purchase decisions based entirely on trust in Guazi’s inspection reports. They believe Guazi’s explanation is merely a delaying tactic meant to cover up errors in its testing and sales process.