Believe it or not, using compressed air to power vehicles is a real thing. This innovative concept, known as the "pneumatic vehicle," has captured the interest of researchers worldwide. It is hailed for its zero emissions and suitability for city driving. MDI is a company that holds the international patents for this technology. While it may appear to be an eco-friendly solution, the energy needed to compress air must be factored in when assessing its overall efficiency. Despite this, pneumatic vehicles offer promise in reducing urban air pollution over time. These vehicles, also referred to as air-powered or compressed air vehicles, represent a cutting-edge mode of transportation.