Picked up my S Performance Thursday (replaced a ‘17 P100D). It had 40.4. Expected range on normal (not trip range) charge. Went to the service center yesterday because Sirius XM is in dealer demo mode and I can’t add it to my account (still isn’t fixed btw...please help if you know what’s up). While there the car downloaded and I installed 40.5. When home I plugged it in and saw 20 minutes later it was charging at 34 mph (before I never even got the promised 28 on a wall charger and I confirmed later that the 34 mph was still happening). This morning, instead of the expected 306 miles the car is showing range of 350 miles with a total max of 389. Well ok! Going to have to do a full charge to see if it does the max is but seems like 40.5, not just 40.7, adds the efficiency boost. But I have the 21 wheels so according to the new configuration I should expect 334 (or thereabouts) so will see what happens.