General Motors has announced it will remove the GM "Mark of Excellence" logo from its vehicles. The individual brands-Chevrolet, Cadillac, etc.-have been faring better than the corporate name in market testing. "What we're seeing is the GM brand gets dinged big time in terms of considering a GM vehicle," said Mike DiGiovanni, GM's PR marketing brand global honcho for talking. "But when you look at Chevrolet, Cadillac and our other brands, they haven't changed." Except when they have, obviously. "Also," DiGiovanni said "none of the cars are really that 'excellent,'" adding that the company is considering replacing the logo with a new one that says "BMW." (That last part: not really.)