The fuel consumption of a car is also essentially determined by the driving resistances – i.e. mass, air resistance and rolling resistance. WLTP considers these physical driving resistances better and more comprehensively than NEDC. However, even a representative bench test such as the WLTP cannot take into account all factors that influence fuel consumption in reality. Among the most important factors that increase fuel consumption, which a laboratory test can only record with difficulty, are the individual driving style, the geographical conditions of the route, the load, the climatic conditions and the use of energy for auxiliary consumers such as seat heating or air conditioning.