Our Tesla is at the SC for the Ludicrous upgrade so we have an older P85 as a loaner. I've noticed that the regen seems to be much less 'powerful' compared to our P85D. When I let off the accelerator in our car you really feel the regen kick in but I don't get the same feeling on the loaner. Both cars are set to the same setting. Does this have anything to do with the dual motors or is there any degradation over time with regen? As a side note, the loaner has the old seats and not the next gen, wow what a difference. The next gen seats are 'insanely better' IMO. And it doesn't have a center console, what a pain in the neck not having it. Really makes me adjust my driving position if I have a drink in the arm rest cup holders. And anything in the center slip and slide area gets beat up. Very happy with our decision to get the Tesla Center Console installed when the car was originally delivered. Finally, I was surprised to see the charge setting set to maximum on the loaner car. I backed it off while I have it (you are welcome Tesla). But I guess if you own the company replacing batteries isn't a concern down the road. It's always fun to drive different cars, that's for sure.