15, 2015, killed 4-year-old Vivian Varela, who was riding in the back seat of her mother's Lexus sedan.... “ It’s a massive game changer in terms of automobile collisions.” He said automakers have been incredibly slow to adopt the crash-prevention technology while noting how automakers have adopted airbags and other safety features to protect occupants.... “ At worst it would have been a fender bender, and most likely it would have been a clean miss.”....