vehicles are available now at RBM of Atlanta. Read more about the specifications, details, and options of your favorite Mercedes-Benz. Our professional and courteous staff can also answer any questions you may have about any new 2013 vehicle. RBM of Atlanta is a leading Mercedes-Benz dealership proudly serving the areas of Marietta, Smyrna, North Metro, and Sandy Springs. Customers come to our dealership because we provide prompt service, a large inventory, and exceptional customer service.