OK, so just my 2 cents, but I feel like I have to speak up. Not that I significantly disagree with Ben Sullins` or Rob Maurer`s numbers: I am expecting 180-200k Model 3s this year. But i think both of them make some glaring mistakes.
Sullins` video talks about how Tesla will not be able to ramp to 10k/wk before 2019. Maybe, maybe not, but his reasoning is off. He says they`ll get to 5k, but then other scaling/ramping issues may come up so, as I recall, he projected 6-8k as the upper limit this year. However, I think we have Tesla on record (at one of the earnings calls, so either from Elon or JB) saying, that the current Model 3 line is only designed to scale up to 5k and they will duplicate the line once the first one works smoothly at that rate. Not that I expect an instant doubling when that happens, but it`s not like they are trying to push the same line from 1k today to 10k by Q4.
Maurer`s whole theory is built on the Model X analogy. I think that is faulty at core. Sure Model X also had issues and yes, Model 3 will probably have new issues as they increase the ramp, things no one has thought of. But Model X`s issues in themselves have absolutely zero bearing on Model 3. The two vehicles are different designs, built on different production lines, with different battery cells and packs. X had issues with manufacturing its special seat, door and windshield, mostly related to suppliers. Model 3 doesn`t have any of those design elements. Sure, other things may and probably will come up, but extrapolating ramp impact of a yet unknown, future Model 3 issue based on e.g. how quickly the Mexican windshield factory managed to ramp for X? Doesn`t make sense to me at all.