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I found a 2016 Tesla Model X P90DL a month back but then it was taken off the site.. It was the perfect configuration as well for what I wanted but I couldn't pay it at the time..
I found one as a CPO on Tesla's website: Model X 75D 5YJXCAE28GF013256 | Tesla Its a 75D, Deep Blue Metallic, White Seats, 7 seater and even includes Autopilot 1 Hardware.