How much gas will vehicles use in the US 100 years from now?
Doubtful that we can predict this. Technology is changing so fast these days, that it's impossible to know what other options will have been developed by then.
Probably none. Electric vehicles will likely take over and will have less pollutants.
That is if we still are using gas,
Something tells me that there is going to be a scientific discovery to where gasoline is solely irrelevant.
In 72 years from now we should be all in sky cars.Power source has not been perfected.No more gas I can tell you that for certain.