115k reservations in 24 hours. $115m. That is an excellent first day. Assuming there aren't many cancelations, ~$4B+ total by 4Q 2016. Very nice. However, I don't think the hype matched the presentation.
Q42018... Sales won't start until the end of 2017 (if things stay on schedule) and production will likely ramp up, I'd be surprised if they sell 100k Model 3s in the first year. Still, the average revenue to Tesla will probably be on the higher end, $45-$50k since they'll likely prioritize the performance versions as they've done for the S and the X so far, so 100k x $45k still gets you to $4.5B.