Hi all, before I paid extra $10,000 to upgrade from 75D to 90D. Just 1 hour ago 100D is available, only $3000 more! But the range increased by 38 miles! That make my 75D -> 90D upgrade like an idiot!! My car is not under production yet, just have the VIN number. What should I do? Ask the sales to change it? Is the extra $500 worth it? How long will the delay be (it was said to be there by Feb 16).