Reynolds and Reynolds and CDK Global are two of the largest providers of dealership management systems (DMS) and automotive retail technology. Both offer tools for inventory management, customer relationship management (CRM), finance and insurance (F&I), service scheduling, and digital retailing—but they differ in focus and approach. Reynolds and Reynolds is known for its robust, highly integrated platform and strong compliance tools, often appealing to dealers who prioritize security and process control. CDK Global offers a more open, flexible system with broader third-party integrations, making it attractive to dealerships seeking customization and scalability. The choice often comes down to dealership size, integration needs, and budget priorities.