1.000.000 dollars
Solar cars will help the world a lot.
Solar powered cars are completely pollution free. They have no carbon dioxide emissions. They make no contribution to global warming. They are much much better for the environment than regular cars burning oil.
About 200,000 dollars.
yes, they have a reserve of petrol as a back up but they do not use much as they are solar powered. their main power comes from the solar panels.
around £50,000 pounds in the uk
Spain is powered by solar 68%
depends on the car, ranging from 7k to 1 million
A solar powered car may cost from $50000 AUD ($44944) to $2.5 million AUD ($2.25 million).
I don't know of any hydro powered engine for cars
I'm guessing it is to make them more aerodynamic so you can save some of the solar energy.
If and when gas is no more or the cost becomes too much there won't be much of a choice then.
it all depends on how much sun, how light the car is, humidity and many other factors.