Owner counts are derived from title transfers. Each time a vehicle is titled to a new party, the count increases.
The count is approximate rather than exact. A transfer between family members, a move between states, or a dealer taking a vehicle into stock can each create a record that does not represent a real change of user.
Because of privacy law, a report can tell you how many owners there have been and roughly where and when, but not who they were.
Why it matters
Many owners in a short period suggests a vehicle people keep wanting to get rid of, which is worth asking about.
How to check it
Look at how long each owner kept it rather than at the raw count. A run of short ownerships is the signal.
Does this apply to the car you are looking at?
Run the VIN or plate and see what is actually on record.
Related terms
Definitions are general guidance, not legal advice. Title rules, total loss thresholds and inspection requirements are set by each state and change over time, so confirm the position with the motor vehicle agency for the state the vehicle is titled in before relying on it.