The company is investing $152 million in its Ypsilanti transmission plant to increase production capacity for its rear-wheel-drive, six-speed transmissions, Flores said. It is investing $60 million in its Romulus engine plant for making the small-block V8 engines that will go into its new full-size trucks. It is also spending $32 million to update the hydroforming equipment in its Pontiac metal stamping plant, which uses water to help make the unique curves on the Pontiac Solstice and Saturn Sky roadsters.