Im looking at buying a used MS. On the Tesla site, under "pre-owned," They give a P***** number. Can I predict the production number of that vehicle based on that number, or will I need to get the VIN from each car to determine this? Does it mean anything relevant? For example, this is what they give,: 85 kWh Model S - 2014 - 1,553 miles - P50623 -- Im talking about the P50623 number. My thought is, the later the production number, the better.