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
2010 Prius, now for sale
2011 LEAF, sold in 2015
2018 Tesla Model 3
2014 Tesla S, Model 3 in 2019
Solar PV: 33 x 225W -> 7 kW max AC
To Sell: X-treme 5000Li EV motorcycle