A review discusses how electric vehicles are getting more popular because they don't pollute the air and cost less to run than regular cars that use petrol and diesel. To help the environment, many countries want to decrease fossil fuel car use by half by 2050 and increase use of eco-friendly vehicles like electric, hybrid, and hydrogen fuel cell cars. The review looks into regenerative braking systems that can help electric cars save energy by converting some of the car's motion into electricity when it brakes. This system helps the car go further on a single charge and can be really important for making electric cars more efficient and practical for everyday use.