There is already cars that run on electricity that is better for the economy and the world we live on. Electric cars are better for the economy because it creates less pollution. Fossil fuels make more pollution and i have done research about it and you can check it out on the links I have provided below.
Finally Bieker claims that the cars of the future will have digital frontiers. Digital frontiers are helpers or you can say personal assistants like apple's siri or google's google assistant. My opinion is that that would be helpful because it could prevent accidents. An example of it preventing a accident is by instead of having to go on your phone to send a message you can just tell siri or the assistant to send the message for you.
In conclusion those are the possible functions the cars of 2050 will