The F150 line at Dearborn Truck (the famous River Rouge plant featured in many terrible tales from the beginning of the UAW) produces 650 vehicles a shift on average, 2 shifts per day. The plant manager gets kinda angry when production drops below 600 vehicles in a shift because that starts costing him part of his year end bonus. That's a single plant for a vehicle with an insane amount of variation (body style, engine types, transmission, wheels, interior, etc. etc. etc.). The fact that Tesla can't produce half as many cars a week (on average, bursting doesn't count) as their smaller-by-market-cap competition does for one line on one shift on one day is not good. To respond to a sibling comment -- they have been producing vehicles, but not at scale, not at anything like the scale they claim they'll produce Model 3's. Not. Even. Close.