Right, the VIN "should be" manufacturing-completed order, as far as we know, but we seem to have at least one "manufacturing date" example to the contrary.
However, Manufacturing date might be the "start" date, and VIN might be assigned serially only at the END of manufacturing.
See SOC/GID-Meter and CAN-Do Info
2011 LEAF, 2014 Tesla S85
2018 & 2019 Tesla Model 3
Solar PV: 33 x 225W -> 7 kW max AC
Craigslist: Xm5000Li Electric Motorcycle