text: accelerometer = require('./accelerometer')
  gasPedal = require('./gas-pedal')
  Brake = require('./brake')
  copilot = require('./copilot')
  
  module.exports = {
    goSixty: function(){
      var speed = accelerometer.read(),
          brake = new Brake()
      if(speed < 60) {
        gasPedal(60 - speed)
      } else if(speed > 60) {
        brake.engage(speed - 60)
      } else {
        return copilot()
      }
    }
  }
  