Does anyone know if the amount of regen is the same in the Performance vs. regular? I tried searching threads to no avail. I may be wrong since I'm no engineer, but the way things are worded on Tesla's Model S "specs" page, the inverter is used for regen, or associated with it anyway. Theoretically this means that the Performance could do stronger regen than the standard model since it has an upgraded inverter, correct? Or is the limiting factor the battery? Has anyone driven both and noticed any difference (or asked engineers who know)? I love the regen on my Zero DS, and wish it was stronger, and I'd love as much as possible on my car. And I'd love to have a real, practical reason to upgrade to the Perf!