Look at the publication date. I'm not sure what TechCrunch was trying to accomplish doing that. It wasn't even the right day of the year for something like this.
Edit: Apparently the point was to test what rebloggers would believe: http://www.slate.com/blogs/future_tense/2013/08/27/uber_goog...
And from Tesla too
http://www.greencarreports.com/news/1098997_uber-ceo-to-tesl...
[1] http://techcrunch.com/2013/08/25/uberauto/