That’s actually a great idea. My concern, however, was getting black-listed for 12 months by Tesla if I refuse delivery. If I don’t like the new S, my Plan B was to get a new 3 Performance. I suppose I could just order both simultaneously, and bail on the 3P if I end up liking the S.
The blacklist was only for returns, which isn't an option anymore. Just convert the order, and then tell them you don't want matched to a VIN until you have test driven one. At that point if you don't like it cancel it.
The decision right now is do you want the $100 back because you know you don't want it, or do you want to move forward with a $2,000 discount. (But you can still delay delivery until you are ready, or cancel you just lose the $100.)