When oil runs out then gasoline cars will be obsolete. It is estimated
that natural gas will peak 10 years after oil peaks(1). We cannot use
LPG because LPG is made from either natural gas or crude oil. Hydrogen
doesn't seem viable either because production of hydrogen requires
fossil fuels to drive electrolysis. Electrolysis of hydrogen using
renewable energy sources is not practical. To power the world's energy
needs you will require wind turbines that cover the world many times
over. The closest solution we have is battery powered hybrid vehicles,
but even that solution is limited by battery technology.

I have a solution. Trams and trains run on electricity directly, which
means there are no worries about energy storage, i.e. no batteries are
needed. Hence just radically expand the public transport network to
make it more comfortable and convenient and let everyone catch public
transport. An alternative is to replace all roads with tram lines.
Tram lines will be everywhere, even on your driveway at home. You will
have your own personal private tram, which you will use to drive on
the tram lines. People who want to go "offroad" will have to use
electric vehicles. Private trams can be driven automatically. Once the
tram gets into an intersection then its directions are controlled by
by a computer for that intersection, which manages traffic flow.
Because no one has to drive then there will be no road fatalities.
Plus people can do something while they transport themselves, which
increases productivity and thereby improves the economy.

Where will the electricity to power the trains and trams come from?
The only solution is nuclear power.

1: www.lifeaftertheoilcrash.net/