Let us be realistic, she should have told the guy from the begin of their relationship, if he really love her with whom she is, the guy might not mind the daughter. But she was fear of rejected by the guy which was a silly mistake.
The issue of the car, she want to use the car to tidy down the guy which is not the best. Anyway, If the guy still love her, he will come back for her, but if he does not, life goes on. Always tell the truth about urself in a serious relationship.