SEOUL, July 15 (UPI) -- Mercedes-Benz Korea has opened the world's first brand center for Maybach, the ultra-luxury line of the German automaker, in southern Seoul to capture more market share here. Mercedes-Benz Korea said that access to the five-story building would be limited to customers with reservations, and they would be able to enjoy personalized services from product experts and sales consultants. Mercedes-Maybach vehicles typically start about $200,000 and can increase to beyond $300,