This project proposal examines the advantages and disadvantages of eco-friendly cars in developed countries. It explores the revolution in the automobile industry with hybrid and electric cars, highlighting their role in reducing pollution and harmful emissions. The proposal includes an introduction, research background, aim, objectives, research questions, scope, and methodology, focusing on secondary data analysis. It investigates the benefits of eco-friendly cars, such as reduced noise pollution and lower running costs, while also acknowledging limitations like charging station availability. The study aims to evaluate the effectiveness of eco-friendly cars over traditional vehicles, supporting a sustainable future by promoting electric vehicles and addressing environmental concerns. The proposal outlines the structure of the study, including literature review, data analysis, and conclusions, and references relevant literature to support the research.