Collaborative Consumption while driving? how come?

So how come that Collaborative Consumption can be done while driving?? Well, just take a look a this video of how blablacar works:

Simple, ain't it? blablacar is a version of Collaborative Consumption implemented in England, but it also has a Spanish version Comuto and even a French version Covoiturage. It's a fact guys, Collaborative Consumption is taking the world!