XSp.

Flygbussarna, a swedish airport coach company used an interesting way to advertise their service while also promoting CO2 emission reduction.

I also noticed the math is wrong, they didn’t consider the average number of people inside a bus like they did with the cars and if I’m not mistaken, most busses emits more CO2 than any other car (unless electrical busses and those with alternative fuel). But whether it’s 50 or 10 cars, on average, busses are greener and better for society (but less convenient for the individual).

Source: Gizmodo