CarZone USA in Maryland Started out as a small 10-20 car lot. Thanks to our loyal customers and all the referrals they have provided, we now stock over 200 cars for you to choose from. Secret to our success is simple we treat people the way we want to be treated, with respect and courtesy. Stop by our dealership today or give us a call to find out why so many people recommend CarZone USA to their family and friends.