Tesla didn't update any software for P3D buyers who didn't get their spoiler at launch. I find this hard to believe.I agree about the track mode, but the difference in top speed between the P3D- and a P3D+ with a spoiler has been demonstrated by Bjorn Nyland. I'll link a video below. The TL;DW version is that he proved the top speed on his P3D with no spoiler on the Autobahn in Germany, then went to a SC to have his spoiler installed. The SC then updated his car's firmware for the newer high speed. He then went back on the Autobahn and proved the higher unlocked top speed. The speeds on the chart posted above match what Bjorn got on both runs.