Passat EcoFuel is an eco car which emits a tiny amount of CO2, around 20g. To illustrate how little that is, we chose to compare the cars emissions to that of a human being. We emit on average about 0.05g per breath. The comparison was shown in various ways, all depending on what was best for that particular media.The choir emitted the same amount of CO2 during the radio spot as the Passat EcoFuel would do over a kilometre. We calculated this by using a choir off 22 people who emitted on average 18.7 litres of air during 30 seconds.

It was a part of a wider campaign in which human emissions were compared to a Passat EcoFuel.