My next car will hopefully be a Model X. The wait is currently long, but that doesn't bother me since I don't need the car until June 2017 when my curren lease expires. But I do want to nail that specific point in time; if I receive the new car earlier, I have the expense of two cars, and if I get it later, I will have no car. The production is currently ramping up and it doesn't make sense to extrapolate the waiting time that far into the future. The queue will likely shrink, but it is a delicate balance between supply and demand. Nobody is better at predicting production than Tesla, but it is my understanding that you cannot choose delivery date, only when to confirm the order. What happens after that is everyones guess. So what would be the best strategy to hit a specific delivery date?