How does contact between a buyer and a seller work?

Every request starts with a written question to the owner; asking is free. The question reaches the owner once the buyer has passed the identity check, once and free.

The owner is told and decides whether to answer; their answer opens the conversation. All conversations, as buyer and as owner, are in one place: Messages. No names or contact details are exchanged: each side shares its own if and when it chooses.

Names, documents, released photos and the car's history, and arranging a viewing, pass only between two people whose identity has been checked. The owner chooses which photos and anonymised documents to release, one by one or all at once. If the owner declines or doesn't answer in time, the request closes. Either side can also ask Concierge to handle it.