LAS VEGAS – August 4, 2009 – Keeping with its commitment to sustainability, CityCenter has commissioned the first stretch-limo fleet powered by compressed natural gas (CNG). Developed by Krystal Enterprises, the world’s largest manufacturer of stretch limousines, in collaboration with Clean Energy Fuels, BAF Technologies and Ford engineers, the 26 silver, 72-inch Lincoln Town Cars are 100 percent dedicated to utilizing CNG and will service CityCenter’s ARIA Resort & Casino and Vdara Hotel.