In recent years, the growing concern for the environment brought many national and international initiatives to tackle the “plague” of global warming. Although the concreteness of such measures can be argued, examples such as COP 21 and European emission’s regulations have not only emphasized the urgent need for tangible actions but have spread such concern on all spheres of our society. Indicatively 35% of transport-related CO2 emissions are imputable to road freight and 7% of total energy-related CO2 emissions, according to IEA (2017). While EU has set progressively restrictive emission’s limits on car, no regulation has been emitted for HDVs (Heavy Duty Vehicles) until 2019, and for sure it will be needed to reach the aforementioned target in the next decade.