Introduction

Abstract

Society is a dynamic being and transportation is a key factor for fulfilling the human needs: going to work, shopping, bringing the children to school, travelling, delivering goods, etc., are just a short list of activities related to mobility, which plays an important part in economic growth, globalization and, on the other side, unfortunately also causes a certain environmental impact. Among different means of transport, vehicles equipped with internal combustion engines represent the most relevant share in the global transportation and namely cars and motorcycles are a self-evident object in our daily activities.