Over my 10k miles I have put on, since delivery on Dec 4th 2018 to now, I am down to about 259-260 for my Model 3 Performance. This is including the fact that, in february, my lifetime total was around 305... meaning my lifetime average has dropped from 305 to 259-260. Summer, less lead foot....
Pretty happy with it actually, and this is on factory 20s.