Futur Cars must be economic (use eolian, photovoltaique and spare capacity of electrical network to make H2 or kerosen sea water)But it must keep pleasure, performance and security. No need to fly for that, just surfing on electromagnetic whell for no frictions and comfort... Electric motor is more efficiency, H2 is good for elecrical custody...for the moment...Carbon is light and resistant for the chassisWe must keep energy for our child without greenhouse effect, if we are True Humans...