From @MattB's work, we derived this chart for the spreadsheet. It plots VIN assignment to every reported car that was configured on each day.
It is not VIN# and color specific, but you get a good picture of the assignment schedule.
My interpretation of the chart is that they are in the process of filling the Silver metallic orders first followed by white then maybe red (19" wheels have precedent over 18'" wheels). You can also plot your configured car relative to everyone else's.