The recent and rapid increase in the number of vehicles has led to growing pollution, especially in large cities. This is one of the main causes of global warming, which is why many governments have begun to take steps to try to reduce it. The most common measures are the promotion of public transport and the limitation in the use of vehicles in city centres through the prohibition of cars with a single occupant or with even or odd number plates depending on the day of the week, etc. However, it could be said that so far none of these solutions has proven to be the most convenient and/or affordable solution for everybody.