Future cars

Here are a some pics of future cars:

Well this list holds many future cars, but what do they run on? I have grabbed the list so all can see the many different types:

Electricity
Solar Energy
Biodiesel
Bioethanol
Hydrogen
Liquid Petroleum Gas
Methanol
Natural Gas
Biobutanol
Biogas
HDRD
ULSD
DMF
DME
Synthetic Fuels