Apple car: design, self-driving technology and what we know so far

Apple has arguably changed our lives more than any other company in the world during the past two decades or so. But aside from its digital devices such as iPhones, laptops, watches and operating systems, is there another direction it could go? The somewhat tentative answer to that has been transport, in the form of electric self-driving vehicles. Is Apple gearing up to challenge electric vehicle market leader Tesla, and what progress has been made so far? An Apple-branded car has been mooted for some years now, with sporadic reports of progress being made.