Metrolos car
From Tardis Wiki, the free Doctor Who reference
Metrolos cars were driven by robots permanently connected to a computer-controlled network, which was itself connected to the planet'] Travel Control through a hyperlink. The cars automatically kept a safe distance from each other, and emitted virtually no pollution because they ran on recycled paper cups. (COMIC: Road Rage [+]Loading...["Road Rage (Eleventh Doctor comic story)"])