With the passage of time, the automobile industry has experienced a major phase shift. From the era of steam engines, we are nowadays talking about electric cars. The story does not stop on just discussing the applications and implications of electric cars, as hydrogen cars have also made their entry. Nowadays, comparison dynamics have changed a lot. Due to the massive competition in the automobile sector, any new technology will not be tested solely on its application. Instead,certain other factors such as fueling mode, efficiency, passenger capacity, type of engine, and extent of infotainment will also play a major role. However, due to the growing environmental implications and with more voices in favor of a sustainable and green environment, carbon footprints are also going to play a major role in deciding for the best option.