Las Vegas

CARMAKERS and tech companies have fallen over one another in recent weeks to show the strides they've made with self-driving cars. At CES - usually a stage for bragging about futuristic bona fides - top executives are instead tamping down expectations about the arrival of autonomy.

Truly driverless vehicles are years away, executives from auto giants Toyota and Hyundai, mega supplier Robert Bosch and ride-hailing service Lyft said this week.