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Design center now shows 75D

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This from fueleconomy.gov seems to suggest 259 is the correct range for the 75D. It doesn't answer whether the 70D is under-rated. I bet the comparable range for the 70D is higher than 240. Why would a software range update increase efficiency? My guess is that it doesn't.

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I would get this update if I could keep the same range but up the performance.
I think there's a technical reason that's not possible. The larger battery cars can have higher performance because they have more cells to draw from at one time. In this case though, the software update let's you use more of the range stored in each cell, it doesn't increase the number of cells so instantaneous power draw is not increased.
 
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Available as an option on all 70kwh cars.

It has to mean all 70's purchased today right? Can't imagine you can upgrade a 2015?

The rumor is that Tesla is putting 75kWh batteries in all refreshed S 70s, including the ones that were ordered but not built before the announcement of the new changes. My S 70 was ordered before the announced changes, but is being built next week for delivery on the east coast during the first week of June. My delivery specialist says he has heard nothing "official" about the up sizing of the battery, but we will be receiving the new body styling, new LED lights and the new front center console at no extra charge. It doesn't really matter to me since an additional 19 miles of range is not worth $3,000.
 
One interesting way to think of this is by comparing it to the original S85.

The 70 has 14 modules vs. the S85s 16 modules so right there the 70 has 14/16 = 87.5% the capacity of the S85

Now add 6% for the chemistry increase: 1.06 * 87.5% = 92.75%

Now add 2% for the all wheel drive efficiency increase: 1.02*92.75% = 94.6%

Now add 2.8% ((294/286-1) *100%) for the additional efficiency improvement that came with the refresh: 1.03* 94.6% = 97.2%*

Anyone want to guess what the additional range is from the slightly lower mass? possibly another 2.8%? probably not quite but still, you're getting greater than 97% of s85 range with all-wheel drive and autopilot hardware for a couple grand less than the original. Pretty good progress from a value perspective.

*I'm not really sure where the refresh improvement came from, probably part aero at the front, part slipstream wheels and maybe some mass reduction.
 
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My guess is that Tesla will get few takers on the opportunity to pay $3,250 for an additional 19 miles on the entry level car. Hopefully at some point Tesla will lower the price (say to $500) for the 70 owners who do not convert. It is better for to get something rather than nothing since the conversion cost Tesla nothing. The hardware is already installed.
 
I will pay for compellingly greater range and compellingly better AP and other features.

Compellingly = > +50 miles
and
Compellingly = > traffic light/stop sign management, 360-degree camera view, and more functional Nav/Trip Planning.

Hopefully by the time the M3 is available, all of the above will be available in a MS100
 
I like it because I'm concerned in going from a S85 to a S70D. Being able to order a 70D today at that price, then driving it a few months... THEN deciding IF I want a 75D is... pretty awesome. It gives me the assurance that if I need a bit more battery, I just fork over a bit of cash vs. having to buy a whole new car...

that is how this thing works now, right? And has anyone confirmed the new camera system... and does it actually do something yet? because if it does something awesome, i might just click BUY already...
 
Money making scheme. The S is a beautiful car. Everything about it is ridiculous expense wise.
That's a bit of a narrow view. If you were in Tesla's shoes and you had deliveries of 70 kWh vehicles pending, would you call them up and ask them for more money because the 70 is no longer available? I'd like to hear a better plan than what Tesla has decided upon.
 
My guess is that Tesla will get few takers on the opportunity to pay $3,250 for an additional 19 miles on the entry level car. Hopefully at some point Tesla will lower the price (say to $500) for the 70 owners who do not convert. It is better for to get something rather than nothing since the conversion cost Tesla nothing. The hardware is already installed.

Frankly without paying the unlock fee a buyer already gets most of the value of the 75kwh pack, I don't think it makes much sense to actually pay for the unlock. Access to a higher "90%"? Check. Faster supercharge times? Check. The only time you'd get any value from your $3k is when you do a range charge.
 
Maybe it's a brilliant new way to end range anxiety and raise revenue. Stuck on the side of the road with a dead battery? No need for a tow truck! Just call up Tesla, credit card in hand. Software is pushed to your car, and you're on your way immediately. Or even better yet, just key your credit card info into the handy form that pops up when you run out of charge. Maybe you can even rent the extra capacity for $200/day. (Just kidding....mostly)
 
So, my prediction (FWIW) is that virtually every 70D buyer will opt for the upgrade to the 75. Why do i think so? because my causal observation was that the same thing seemed to happen when the 85KWH battery model had the option for 5 KWH to be the 90. In my trips to the Service Center/supercharger/delivery center near me, it looked as if nearly all the Model S cars coming in during that period were 90s, not 85s (and a surprising number were Ludicrous as well).
Could be wrong. Maybe the dynamic is different for those buying at the low end of the range versus the upper end....