I have a 2014 model S 85, i just test drove the P85D, thinking about upgrading my car due to the significant acceleration claims. From 0-60, the P85D is SIGNIFICANTLY faster, it is day and night compare to my 85. But most of my driving is from 50-70mph or 70-90mph when the traffic is light, i feel the P85D is only slightly quicker at that speed. Is my senses off ? Please chime in, is there any data out there at show the time both the vehicle accelerates at the rolling 50-70 or 70-90 times between the P85D and the standard 85 model ? After deprecition, there is a $50k difference between the 2 cars.