I'm very interested in how this will pan out. As it stands right now, I have access to the design studio for my 3, and can order at any time. And as changes are made to the design studio, I get them immediately. So presumably when the AWD option becomes available, I'll immediately be able to order it. But how on earth are they going to keep to a 4 week delivery window with that, if even 25% of current people that have ever been given access to the design studio are waiting for AWD, and plan to order as soon as it's available. That would be a much larger single "batch" of orders than each new batch of people that get access to the design studio. Even if they're at 5k/week production volume at that point, I doubt they'll be able to immediately change 80%+ of their production to handle AWD orders (that will spike, as everyone waiting for that immediately orders) and still keep up their 5k/week rate. Maybe they stockpile several thousand cars with the new option, before putting it in the design studio? But that gets really hard as the number of combinations goes up (SR+non-PUP, SR+PUP, LR+non-PUP, LR+PUP+White, LR+AWD+non-PUP, etc.)