Position number = ? delivery date???

Anybody knows how a position number is related to a delivery date? Did the factory ever gave to each buyer an expected date of delivery, or in about 6 months prior to delivery CD contacts the buyer asking for more info on the choices, etc.?

I had position #270 for an SR20. I switched to an SR22 and have a JUNE 30, 2001 delivery date. In December I was asked to select color etc.

Anybody knows how a position number is related to a delivery date? Did the factory ever gave to each buyer an expected date of delivery, or in about 6 months prior to delivery CD contacts the buyer asking for more info on the choices, etc.?