I love the Amazing design of the new all glass roof and approached my DE to upgrade my existing order (no VIN assigned yet) on a MS with old style panoramic sun roof. Guess what, the upgrade is not a simple change off paying the difference between the costs of the two options. My DE was very clear that if I wanted to upgrade to the new style sun roof my standing order (and all the pricing of options associated to it) will have to be "refreshed" with the new pricing off all features/options. Over the last couple of months Tesla went through a number of price increases and in my case the difference between the old order and the new order would be an additional £2600 (price difference for S90D Base model from when I ordered to today's price) plus some smaller numbers for features that are now more expensive than in the past. Now the struggle I have, should I shell out an additional £2600 for the new style all glass roof?