The X will already have a lower range (assuming the same battery) due to it's greater weight and poorer aerodynamics than the S.
I would like to have a performance X but am worried that the range hit for the performance model may not be worth the performance gain since either X will be slower than its S sibling.
Can the range decrease be mitigated by careful driving on the long distance trips so that I can enjoy the increased performance when used around town?
I am hoping that this will be clearer when we get more info from Tesla but it will still be a quandary. Is anyone else thinking about this and what are you deciding?