Here is an update to the VIN sighting trend, it's looking more like step functions with exponential increase, the rise in the vertical axis (VIN) becomes increasingly larger, and the time for each step in the horizontal axis becomes increasingly shorter:
View attachment 264065
Cool! One idea: Plot the VINs registered with NHTSA in another color in the same graph. Over time, as production per car goes quicker, the two curves should move closer together. Will take a while (a few months I guess) to have enough data points to see this trend.