Not sure what you mean by this - maybe you’re referring to this?
The National Motor Vehicle Title Information System is designed to protect consumers from fraud and unsafe vehicles and to keep stolen vehicles from being resold.
vehiclehistory.bja.ojp.gov
That said, LE doesn’t have the VIN, to my knowledge - that’s generally stamped somewhere on the frame of the car. I’m not even sure they have a license plate number (otherwise it’s owner wouldn’t still be a mystery.)
This
Reddit post claims some numbers of total Frontier Pro-4Xs made, although they don’t cite a source for their numbers.
Nissan reports 62,837 sales nationwide for 2013, although they don’t break it down by trim level (ie ‘regular’ Frontier vs Pro-4x) or color.
Speaking of color, there were 8, 3 of which could possibly be mistaken for the other at night: SuperBlack, Night Armor, and Graphite Blue:
gtcarlot.com