Ford wants to launch a fleet of thousands of self-driving cars in 2021

> The cars took journalists on several trips through downtown Miami—a driving environment described as “double black diamond hard” by several Ford executives, in reference to the most difficult downhill ski runs.

Seems like snow-covered roads with falling/blowing snow is what I would describe as the most challenging environment (for humans or computers). I suspect they ruled that out from their double black diamond rating.

Ford say they want to do a lot of things. I'm sure some shareholders get excited from that. But how about execution ?

They acquired chariot 2 years ago. Why i don't hear massive PR about chariot's great success, great results ? How is it doing against it's competitors , let's say ridewithvia.com ?