(Edit: I had to link to the wayback machine because Tesla subsequently removed the press release. Alternately, there's also the blog posting that you yourself pointed to elsewhere in this thread, with the same language: http://www.teslamotors.com/blog/tesla-model-s-achieves-best-...)
The feds pushed back that 5 stars is the max, and there's no such thing as doing better than 5 stars.
"NHTSA does not publish a star rating above 5, however safety levels better than 5 stars are captured in the overall Vehicle Safety Score (VSS) provided to manufacturers, where the Model S achieved a new combined record of 5.4 stars."
Elsewhere in this thread, you point to a different Tesla blog post with the exact same language!
And the only problem is because they technically used 5.4 and stars together. If they called 5.4 with some other magical unit they invented, or simply called it theoretical/hypothetical rating, there would be no problem.
They also make it pretty clear: NHTSA does not publish a star rating above 5
You would have to be either a lawyer or pretty dense to see that as deceptive.
http://wayback.archive.org/web/20130820005458/http://www.tes...
(Edit: I had to link to the wayback machine because Tesla subsequently removed the press release. Alternately, there's also the blog posting that you yourself pointed to elsewhere in this thread, with the same language: http://www.teslamotors.com/blog/tesla-model-s-achieves-best-...)
The feds pushed back that 5 stars is the max, and there's no such thing as doing better than 5 stars.