Historically with Tesla, we receive the VIN assignment week(s) before it goes into production. Keep checking your Tesla account where you VIN is, the status will change as production of your vehicle begins. My last VIN was assigned in DEc '16 about a week after I confirmed. Then because they car was going to be built in '17, the VIN year character changed before year end. The production of the car didn't begin until early March '17 though the VIN was assigned and adjusted in Dec '16. So, it can be weeks. But it might depend on the model of the Tesla too.