Instead of designing cities (the world) base on cars , we will design cities base on the next transportation method, which in my opinion will be autonomous. we won't own cars, for what do you want a car? you won't need it. I think is obvious it just needs someone to push the rest, will be tesla? I don't know, but the car (truck) economy is not sustainable in my opinion.

Can you cite one case where a loaded semi is driven on an icy road? Or a company that promises to achieve that within 5 years?

5 years seems like... short time, as a reminder, 16 years ago the best video game system was Nintendo 64, in 2006 mobile phone were anything near what we have today, Tesla autopilot was first offered in 2014, 3 years ago. I wouldn’t be surprised if by 2019 full autopilot is a everyday thing