> the second model will be a sporty four door family car at roughly half the $89k price point of the Tesla Roadster and the third model will be even more affordable
Tesla cars so far have definitely been luxury cars. If they keep going downmarket into the mainstream, I wonder if they'll want to create a separate brand for their mainstream stuff, a la acura/honda, toyota/lexus, and infiniti/nissan.
If they do, the low-end brand should be "Edison".