I am a relatively new P85D owner and on the cooler days (50's) I would use my Tesla app to get the car interior up to low 70's while getting ready to leave work. On several occasions, I noticed that my regen was limited until I drove about 5-7 miles. The car's battery was 80% charged. I also noticed it today with the ambient temp of 57 degrees when I turned the car on without preheating. Called Tesla support and they don't seem to know if this is normal or not. I figured if the outside temp was much lower, like around 30's I would see limited regen and not this early. Any advice/experience would be greatly appreciated.