Motion/Animated graphic required for Taxi Media

My company is about interactive advertising on tablets in taxi. Screens are placed in the headrest of the taxi and passengers can watch the advertisements displayed on the screen. I need you to create an informative, creative and attractive video that explains this by using animations. Certain images need to be cyst only created (such as the screens in the taxi's). We are open to select new freelancer to motivate them, selection will be based on 3 second animation sample. Preference will be given to low bid amount.