Dan 
Question of the day...
Polestar is having a sale. I can download 70 extra horsepower (400 -> 470) for $1,000.
I have no interest in this. Maybe if it were like $250 I would do it just for fun.
How much would you pay for 70 more horsepower?
Yuggy@dan
Would there be any range increase due to an increase in efficiency? If the range increase was, say, +10% then that would have more value.