Does anyone know what VIN Tesla started adding AutoPilot hardware/software? The earliest I have seen is 55966. Briefly speaking to Tesla rep they said late 50s. Next, for example, if I see a Tesla with VIN 065000 and does NOT have AutoPilot as part of tech package: 1. can it be added later? 2. OR does it come with the AutoPilot hardware and owner would pay $3k to have software enabled WHEN v7 comes out? 3. OR during initial build IF customer did NOT add AutoPilot then Tesla does NOT even place the hardware? Hope this makes sense. Goal would be to buy used CPO with VIN in AutoPilot range. Just want to know if AutoPilot will be able to be added later if not installed initially.