CEO Mary Barra bets GM can grow beyond cars and trucks By Paul Lienert, Ben Klayman and Joseph White Reuters (Reuters) - Pam Fletcher wants to change the way General Motors Co makes money. The veteran GM engineer's Global Innovation team is looking for new enterprises to expand the automaker's sources of revenue well beyond vehicle sales and is incubating ventures from commercial delivery services to vehicle insurance, to address future markets worth an estimated $1.3 trillion. That doesn't include flying cars, a market sector that alone could be worth $1.3 trillion, Fletcher told Reuters. On a recent video chat, Fletcher counted silently before answering how many ventures her team is shepherding. “Just under 20,” she said.