Efficiency car and mobility

What is the real efficiency of our mobility with cars? Enlightenment about a lot of misunderstoods about the efficiency of engines and the production of fuel.






Ideal drive for cars
For an ideal drive system with 100% efficiency, only air resistance and rolling resistance has to be calculated


Diesel engine with 45% efficiency Diesel engine with 45% efficiency
The very high efficiency of modern Diesel engines is much mentioned., but this high efficiency is only reached in a small area of operating conditions.


Efficiency thermic electric mechanical
One of the most common errors is to set kWh thermic with kWh electric or mechanical equal. Here the differences: