UWB and Cars

What might you do with access to UWB radio transmissions if you had a receiver in a car?

UWB stands for ultra wide band. According to Abelson, UWB uses very low amounts of power. This is possible because because of the large bandwidth. This low power and large bandwidth can severely limit the range from transmitter to receiver but could transfer large amount of information. Two ideas from chapter eight of Blown to Bits stood out to me as uses for UWB, connecting media aspects of ones home without the use of cables and also connecting a music library to a car.
This second idea is more relevant to me being as I have a car but not my own home with many media outlets. I really like the idea of connecting my home computer's music library to my car. Almost every time I am driving I have my ipod plugged in. The UWB would eliminate this need. Whenever I update my music library I could just transfer over the music and listen to the music in my car without using any cords and taking less time that a manual transfer. Not only could this be done with music but also other media files like movies, f.or the back seats of course.
Another use could be the ability to send directions from your home computer to your car. With a screen in your car that could read the direction anytime you go somewhere new from home the directions can be quickly and easily transferred to the car. Not only directions but even other addresses, phone numbers, or other pertinent information about an upcoming trip.
It would also be helpful if the car could then transmit information to other receivers. Important information could be transferred to the car, the car then driven to another location, and the information then transferred to that new location. This would be like driving a giant memory stick.
The ability to transfer information back from the car would also be helpful to mechanics and car savvy people who wish to look at car diagnostics. The car could record statistics like, gas mileage, distance traveled, rpm, and other useful engine information to make cars perform better and diagnose problems.
The idea of having a UWB receiver in a car has many practical applications. Most of these application do however need other tools to make them useful, such as a storage device for saving the information once transferred. The large bandwidth allows for large amounts of information to be transferred but only over a short distance. The use of UWB is practical with a single home or business office and even to a vehicle however the short range keeps this technology from covering larger areas as wifi and other telecommunications do.