How do I test a car's features at the dealership?

Spend time sitting in the car before or after the test drive. Pair your phone, try Apple CarPlay or Android Auto, test the speakers, heated or cooled seats, climate zones, cameras and driver-assist features. Adjust seats and mirrors for every likely driver, check rear-seat legroom, and open and close the liftgate or trunk. Make sure key fobs and remote start work. Don't feel rushed; this is part of deciding.