There are multiple spread sheet, pdf's, Design center pages all over TMC. Anyone wanting to see the cost and options can do so. I would imagine Tesla is "limiting" the design access to allow a few thousand a week to configure and gain a sense of who is committed to which model and preferences. P90D's are what they are building first--logical follow on to Founders and Signatures--Tesla can plan its production, purchase components, stamp parts and build chassis, motors and batteries with committed orders. Touring the Toyota plant in Kentucky, I was amazed that they knew exactly how many of what they were to build by shift, using the confirmed order backlog to plan parts and labor and even when coils of steel were to be delivered by hour.
Opening the Design center at this time to "EVERYONE" may cause it to slow or crash. Tire kickers, press, future buyers will be testing the site every minute world wide. This could result in chaos on the site, and not achieve the real information Telsa needs. Sure they are building the P90D's first -- let's say that is 25% of the confirmed orders and Tesla has to react by building 90D's and 70D's earlier than stated. Tesla needs lead time. They don't have every seat color and configuration, they may not have the right number of the front and rear motors in stock. Tesla, like most auto makers are "just in time" ordering. What they are doing is just good planning... more efficient manufacturing process.
Opening the Design center at this time to "EVERYONE" may cause it to slow or crash. Tire kickers, press, future buyers will be testing the site every minute world wide. This could result in chaos on the site, and not achieve the real information Telsa needs. Sure they are building the P90D's first -- let's say that is 25% of the confirmed orders and Tesla has to react by building 90D's and 70D's earlier than stated. Tesla needs lead time. They don't have every seat color and configuration, they may not have the right number of the front and rear motors in stock. Tesla, like most auto makers are "just in time" ordering. What they are doing is just good planning... more efficient manufacturing process.