rewrite this email to be concise and professional: Here is the list of cars we input to ship out. Can you please validate these cars are in the system and have Active Billing. Please acknowledge back confirmation these cars are to be picked up.

Subject: Confirmation of Cars for Shipment Dear [Recipient's Name], Please validate the attached list of cars for shipping. Ensure they are in the system with Active Billing, and confirm back that they are ready for pickup. Thank you. Best regards, [Your Name] [Your Position] [Your Contact Information]