Mass-market automakers such as Nissan have already given customers a taste of sensor fusion with in-dash parking monitors that stitch together four camera images to generate a virtual bird’s-eye view. Yet the technology will get a much bigger test next year. GM sees sensor fusion as a crucial enabler of Super Cruise, which will allow customers to zoom down the highway without touching the wheel or the pedals. It is slated to make its debut just over a year from now in the 2017 Cadillac CT6, a large sedan that GM has positioned as a technological showcase.