Mae Rhagolwg Gala Elusen Awto Sioe Ryngwladol Gogledd America 2014 heno. Dilynwch ynghyd â'r holl weithredu o Neuadd Cobo drwy wylio ein blog byw. The 2014 North American International Auto Show Charity Preview Gala is tonight. Follow along with all the action from Cobo Hall by watching our live blog.