cars = [{
    getColor: _2, // redCar.getColor
    paint: _4     // redCar.paint
  }, {
    getColor: _6, // greenCar.getColor
    paint: _8     // greenCar.paint
  }, {
    getColor: _A, // blueCar.getColor
    paint: _C     // blueCar.paint
  }];