To help celebrate 60 years of producing trucks in Brazil, Ford partnered with theSao Paulo-based creative agency GTB to make the cap. They researched and mapped head motions, differentiating those made while driving (checking the instrument panel, looking in mirrors) from those made while getting drowsy. The hat has an inboard accelerometer and gyroscope that measure head movements throughout the drive along with components that vibrate, make sound light up. Agency employees explain the design in the video below (in Portuguese):