https://techcrunch.com/2017/11/01/tesla-predicts-production-rate-of-5k-model-3-cars-per-week-by-late-q1-2018/

Tesla went into a bit more detail about the production challenges it faces with the Model 3 in its letter to investors on the heels of its earnings report for Q3 today. We already know that Tesla shipped only 222 Model 2 vehicles during the quarter, since it releases sales numbers earlier than it reports earnings. But we now have some color regarding the manufacturing details that have slowed the pace of production

Tesla says that it’s making progress regarding “early bottlenecks,” and reiterated that there are no “fundamental problems” with its supply chain or processes. It noted, however, that parts of its operation for the Model 3 including drive unit, paint shops and part stamping can produce up to 1,000 units per week during “burst builds of short duration,” but that other aspects including assembly of battery packs and final vehicle assembly are showing only “burst build” capacity of 300 units per week. Those aren’t constant figures, also, as indicated by the burst build language.