Tesla..
Note they refer to the car control software as 'beta' and is only meant to be used on major highways with good lane markings... and the driver is meant to have hands on the steering wheel at all times (which while they detect it, they dont enforce)
I think they've also said that given the miles the cars have travelled the accident rate is well below that of a human driver.
But of course its new and different so any issues will make news.
At least we will get some driverless trains in Sydney in 2019 with the opening of the Sydney Metro Northwest