No one needs access to driverless cars more than America's poor | Ashley Nunes

Road crashes claim over 40,000 lives in the US annually, and the poor are more likely to die than those well-off

Silicon Valley is pouring billions into robot cars. Soon - although the time scale keeps shifting - tech manufacturers say driverless cars will replace their traditional counterparts, car parks will become parks again and road fatalities will plummet. People have argued over ethical concerns surrounding the technology, the ensuing job losses and the public's antipathy to this robot revolution. But the biggest obstacle may well be money.

We have been taking a deep look at the economics of driverless technology. Our conclusion? So-called robocars are unlikely to produce the societal changes tech companies are promising not because they don't work but because they will cost too much.