Wow I thought this would take at least another decade, given how difficult driving in London is compared to American cities. I will still be really surprised if they can actually make this work
When I visited San Francisco recently the Waymos were really awesome and worked well, but also there's barely any traffic compared to London. The streets are all really wide and you can pretty much just pull over anywhere. Some even just stopped in the middle of the road and I was amazed to see people waiting patiently behind them! London is entirely different.
Still, props for trying. Will be very interesting to watch what happens!