IIRC our market share is closer to 70%. It also includes businesses that people don't usually think of but are broadly similar to car dealerships in business model and therefore can be served with nearly identical software. Heavy equipment, etc.

R&R doesn't have as wide a product offering as we do, and the upstart DMS providers trying to disrupt the market are even narrower than that. For all its problems, CDK is dominant for good reason.