Check to see if it's uncorked. Checking eligibility for this on 75's (as opposed to 75D's) will lead you down a rabbit hole that Tesla folks have trouble tracking. It's all in the forums. I just took delivery of my 75 and it took some time to sort out. Happy to elaborate about my adventure if it will help.
Mine was built mid August, after the hardware/software upgrades that led to quicker acceleration if I'm not mistaken? My OA told me that the vehicle I ordered does 0-60 in 4.2 seconds.