It says that Google are building the cars.

Takeaways:

- They're working on physical prototypes.

- These cars don't have a steering wheel or pedals for human override.

- Speed-limited reveals a bit more of their strategy.

- Makes clear how useful and empowering these vehicles will be to someone visually or physically impaired, the elderly, etc.

I'd argue that the entire propose is to expand beyond 'casual followers.' The challenge of self driving cars is ultimately a social (more than a technical) one. Distribution. PR. Legal.