Fuel efficiency is one of the most important competitive factors in developing and selling trucks and buses. Therefore, market forces ensure continuous progress in fuel economy and CO2 emission reduction in the most efficient way.
Any product-oriented legal requirement regarding fuel efficiency and CO2 emissions should aim to further strengthen these market forces. To assist customers in their product selection, ACEA promotes the development of a tool to calculate the fuel efficiency of complete heavy-duty vehicles and vehicle combinations in grammes of fuel used and CO2 generated per tonne-km, cubic meter-km or passenger-km of transported goods or persons, i.e. according to the “work done” principle, using computer simulation.