The Waymo partnership with Chrysler is mentioned in the article. They announced that partnership back in May[1]. They dropped some press releases on their self driving mini-van in December [2] where it was noted among the press that "Other automakers, including Ford and General Motors, have made even more aggressive moves on the self-driving car front."

And then here in January we have this content free press release.

I'm a big fan of figuring out self driving cars. As the evolution of self driving cars unfolds, I become convinced that Google (or a subsidiary via Alphabet) is going to end up being much of a player in the space.

[1] https://www.bloomberg.com/news/articles/2016-05-03/fiat-goog...

[2] http://www.usatoday.com/story/money/cars/2016/12/19/get-firs...