Some cars can now be powered by 
wind Solar energy fusion power plants brain waves gravitational waves engines sunlight energy
A B C D E F G H
Electricity Cars that operate using electricity are the cleanest cars on the market.
Some cars can now operate cleanly on sunlight
Some cars can now be powered by  (A) wind (B) Solar energy (C) fusion power plants (D) brain waves (E) gravitational waves (F) engines (G) sunlight (H) energy