It will allow people to pick up their deliveries in car. It looks kind of the concept of drive in that succeed so well in France. The good thing about the concept, it will allow Amazon to sell its whole wire range of products, including probably groceries.
Amazon is already testing a store in Purdue University, allowing students to pick up their orders.
Beyond the drone hype, I highly believe Amazon is testing a key concept that will probably allow him to get an edge on competition.