It’s a collection of cars all driving them selves while they follow a crazy big truck. Volvo is working with a bunch of other companies on a Project called SARTRE, which is a ridiculous name, but a kind cool idea.
“The project aims to encourage a step change in personal transport usage by developing of environmental road-trains called platoons.
Systems will be developed facilitating the safe adoption of road trains on un-modified public highways with interaction with other traffic.
A scheme will be developed whereby a lead vehicle with a professional driver will take responsibility for a platoon. Following vehicles will enter a semi-autonomous control mode that allows the driver of the following vehicle to do other things that would normally be prohibited for reasons of safety; for example, operate a phone, reading a book or watching a movie.”
They just released a cool video which I posted about earlier