This is all cars page and also search results page.
On this vehicle block client can click on hearth to add the vehicle to favorites. He can add it to favorites even fi he is not logged in. It will save it by his IP (more on favorites section).
On search results page client can subscribe to filter. He will get notified when a new car meeting his search criterias will be uploaded (more on notifications section). The administrator can see all filter subscriptions and see client contact info.