I also got the same email from Tesla today, about 4 hours after I emailed Tesla asking if it was true that the 1.5 Roadster could not be upgraded to the 3.0 battery. The email from Tesla offered no explanation why the battery upgrade was not possible for my 1.5 (I had requested an explanation), nor did it respond to my question about when the other components of the 3.0 upgrade would be available (aero body mods, wheel bearings, brake mods, and new tires).Got my notification today from Tesla that they will be refunding my deposit for the 3.0 battery because I have a 1.5 Roadster.
I plan to purchase the other parts of the 3.0 upgrade when they become available. I am hoping they will, in total, improve my usable range by 20% or more. My current 'real world' range on a standard charge at 65mph is about 140 miles (I avoid doing a range charge if at all possible). A 20% increase on 140 miles would be 28 for a total of 168 and that would be helpful to me. My Roadster is my daily driver and my work commutes vary, ranging from 30 to 145 miles.
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