Robo-taxis hold promise, and perils, for carmakers

Paris

IT'S Nov 22, 2028 and Sarah, a young mother, gives her two children a kiss goodbye before buckling them into the driverless car that will bring them to school.

Sarah doesn't have a car and has no plans to buy one. Living in a suburb, she has run the numbers and the result is clear: It's much cheaper to order a car only when she needs one.