Why not a car that fuels itself with multiple sources of energy?

Compressed Air: I'm not aware of how compressed air is created, but is it also possible that a car running on compressed air, can also generate compressed air? http://edition.cnn.com/2005/TECH/03/30/spark.air.car/

Solar Energy: Electronic devices will continue shrinking, so perhaps a thin layer of solar-panel-paint will not be too expensive. http://www.treehugger.com/files/2005/08/solar-powered_t.php

Wind Resistance: Vehicles are nearly in constant motion when in use, so why not prop a giant wind-mill on the roof. Or perhaps a better design, such as a wind tunnel? http://www.cbc.ca/news/background/energy/wind-resistance.html

Momentum: Already in use on the Prius, is the capture of energy during braking, and the rotation of the wheels. http://uk.cars.yahoo.com/car-reviews/car-and-driving/toyota-prius-1002566.html

Magnetic Levitation: Sure, we fantasize about a future of vehicles that hover based on the meisner effect, or flux trapping, but that's a bit too far away. Instead, let's look at the possiblity of lightening the vehicles weight through magnetic levitation. A lighter vehicle == less energy to create motion. We look to begin the repaving of our roadways using magnetic, or superconducting metals, and do the same in the underbelly of our vehicle. http://youtube.com/watch?v=Z4XEQVnIFmQ

BackupBattery: And of course a backup battery should be included as an emergency resource.

What do you think of this idea or comment?
(You can change your vote at any time)

I agree

No opinion

I disagree