Which CRM systems do car dealerships usually use?

[Krayin CRM]

I’m curious about the type of CRM solutions most dealerships rely on. Do car dealers prefer specialized Automotive CRM Software or general CRM platforms? I came across Krayin CRM, which is open-source and customizable. Has anyone tried using it as an Automotive CRM system for managing leads, test drives, follow-ups, and service reminders? Would love to know if it really helps improve sales and customer retention.