Automakers including General Motors Co., Hyundai Motor Co. and Ford Motor Co. said they would extend discounts on certain electric models after a $7,500 federal tax credit expired Tuesday, a bid to maintain momentum after a surge in third-quarter sales.
Automakers including General Motors Co., Hyundai Motor Co. and Ford Motor Co. said they would extend discounts on certain electric models after a $7,500 federal tax credit expired Tuesday, a bid to maintain momentum after a surge in third-quarter sal... [541 chars]

