D ETROIT - When General Motors Corp. s new global small car hits the U.S. market in mid-2010, the company is expecting it to fetch a better price than Honda and Toyota get for their small cars, GM executives said today. The Chevrolet Cruze, officially unveiled today in Detroit on the eve of GM s 100th anniversary, is a big step up inside, outside and in fuel economy from its predecessor, the Chevrolet Cobalt.