Behaving badly with assistive driving

Available for over a year

There are plenty of cars on the market which make use of assistive driving technology for things like steering and braking. But how safe are these systems and how much should drivers rely on them? The BBC’s Theo Leggett takes a Tesla Model X out on a test track to see how it deals with an unresponsive driver. (Photo: The BBC's Theo Leggett tests an assistive driving system. Credit: BBC)