Unfortunately with Covid, car sharing is currently a thing of the past and mass public transport doesn't appear to be very popular either. The future may well be in squillions more little cars rather than enough buses, trams and trains to get us to and from our place of work
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I've stopped urging people to cycle more because i want the congestion on the roads where i can cycle past it, not on the cycle paths where I'll be stuck in it... selfish, I know.
What was that revolutionary engine I heard about on the radio the other day? Liquid air or something. No combustion so no carbon emissions, and its by-product is extreme cold making it perfect for refrigeration lorries.... that could be 'a' future of transport, but maybe not for the masses.