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They put a larger rear motor in the 90d variants
I'm always perplexed that the jump from 60 to 90 is $19,000. Back in 2013 the jump from 60 to 85 was only $10,000, which price also included Supercharging. That extra 5KWh is $9,000!
Perhaps I should see it the other way around - it's not that the 90 is expensive, but that the 60 is $19,000 cheaper.
There is no indication that the batteries weigh less on 60/75D vs 90D.. I have been told multiple times that they just put empty cells so to keep curb weight and certification the same...which is strange since there could easily be a 200lb weight saving.You may want to factor in the weight of the batteries in the 90D vs the 60D. I don't have the answer to that myself, but that may be one reason why the range is not 50% larger
There is no indication that the batteries weigh less on 60/75D vs 90D.. I have been told multiple times that they just put empty cells so to keep curb weight and certification the same...which is strange since there could easily be a 200lb weight saving.
I hope you are right on the X as well. Just never been able to get a real number out of the Forums.Look at the Wikipedia curb weights here (lots of independent sources that I've seen, but they mostly don't group things neatly like this):
Tesla Model S - Wikipedia, the free encyclopedia
The original S60 is a good 300 pounds lighter than the original S85, and a 70D is over 200 pounds lighter than an 85D.
- It's 218 miles (60D) vs 294 miles (90D), an increase of 34.8%.
- The 90kWh battery pack weighs more than the 60kWh battery pack — the extra capacity has to come from somewhere — thus there's not a 1:1 increase in range per kWh.
- Tesla knows that when people pay that much for a car the expect improved performance, even if it's not a P model. The larger capacity of the 90D's battery pack can provide greater peak power to the motors, thus Tesla sacrifices some range for a car that is faster off the line and faster overall than the 60D.