We can put solar panels on the roof, bumper and tailgate of the car and when it can capture solar energy in its battery.
Engineers can put wind turbine in the front of cars so that, when the car is moving, wind will make the turbine move and which will convert the wind's kinetic energy into electrical power.
HEAT ENERGY
Thermoelectric generator can be install near Engine and exhaust pipe to capture the heat and transfer the energy to the battery.

