A year later, CAT received its first shipment of 50 double decker buses from Alexander Dennis. As new vehicles arrived, the RTC started a vehicle replacement program and began to retire its older CAT fleet. In March 2007, CAT received its first shipment of 30 Diesel-Electric Hybrid vehicles from New Flyer. Later that year, an additional 40 double deck vehicles from Alexander Dennis arrived, and the RTC unveiled a new rapid transit system which uses the new Diesel-Hybrid RTV Streetcar from Wright Group. The first line was called the "Gold Line", which serviced the downtown and strip corridors.