In the year 2015, Metro Los Angeles presents an innovative one person semi-private vehicle system, which is called PDD (pickup-drive-drop). This car will be America’s next iconic vehicle. With the PDD system, people can expect more efficient travel in one of the busiest cities in the world. The concept is simple. A driver finds a cellular-mobile stack, picks up a vehicle and drives it anywhere in the area. Once they reach their final destination, they drop it off without any transferring. Like a shopping cart in the supermarket, they just need to drop it at the nearest mobile stack. So, whenever you need a vehicle, simply go to your closest cell-mobile-stack. This system will be operated by the city, but driven by each user.