General Motors CEO Mary Barra on raising the automaker's guidance, the plant closings due to the company's transition, efforts to rebuild the Cadillac brand, competing against Tesla, the growth opportunities in China and the state of the U.S. consumer.

GM CEO Mary Barra: Working hard to rebuild Cadillac in US General Motors CEO Mary Barra on raising the automaker's guidance, the plant closings due to the company's transition, efforts to rebuild the Cadillac brand, competing against Tesla, the growth opportunities in China and the state of the U.S. consumer.