The 'Domestic' trailer was better than the International one i think... Still not convinced by the CGI... still doesn't feel quite right to me... then it is a guy on a flaming motorbike with a flaming skull for a head, so i suppose i'm not sure what would feel right!
You obliviously never read the comics. The bike is pretty much alive itself. It comes to the ghost rider when he summons it and never neeRAB to fill up on gas.