The sources you cite refer to a range of sensors that will be added to cars starting from 2014, like collision detection technologies. And the Volvo cars you al

The sources you cite refer to a range of sensors that will be added to cars starting from 2014, like collision detection technologies. And the Volvo cars you always talk about are supposed to be in a train formation following a human-driven vehicle. A different kind of project from the self-driving cars from Google. Actual self-driving cars by other companies are always research projects with unclear timescales.