Toyota has unveiled a car that can drive itself along a highway, the latest foray by a major manufacturer into the world of automated vehicles.<br />"We aim to be operational by 2020, the year when Tokyo welcomes the Olympic Games," Yoshida Moritaka, Toyota's chief safety technology officer, told reporters at the car's unveiling.<br />Google has been testing self-driving cars in Silicon Valley, while Nissan has vowed to put an automated car on Japan's highways as soon as 2016.<br />In 2018, Nissan models should have the ability to avoid hazards and to change lanes, and by 2020 vehicles should be able to autonomously manoeuvre through crowded city roads.
