🚘 Car

In France today, cars are mainly combustion-powered (petrol and diesel), although electric cars are making slow progress.

However, whether electric or combustion-powered, cars are still a highly inefficient means of transport: On average, it is necessary to move a human being weighing 80kg in a metal box weighing 1200kg.

It's a bit like making lunch for 10 people every day and then throwing away 90% of the food, or deciding to heat the whole block rather than the inside of each of the 10 houses.

Finally, it's important to take into account both the use (the kilometres travelled) and the construction of this vehicle, which contains over a tonne of various materials.