Sonic Automotive disclosed under Item 1.05 that disruptions to its CDK Global-provided dealer management system, CRM and other sales/inventory/accounting systems began June 19, 2024 from a cybersecurity incident at CDK. Basic DMS functionality has been restored; CRM and other systems remain offline. The Company concluded the incident is reasonably likely to have a material impact on Q2 2024 results due to slower vehicle sales. Full scope and restoration timing remain unclear.