I have seen this too; I've had a car running apace with me disappear from the MFD. I tested the actual detection with a turning signal, and the lane line did turn red, so there's that at least, though the *bamf*ing cars did reassure me that I was right to check with the Mk I Eyeball before lane changes, even when automated.
I chuckled today. Had an F150 come up beside me. As it came from the rear it was a car on the screen. Then it passed me...disappeared and then poof it was a pickup a car length in front of me. Freaking Tesla Magic!
I suppose we need to define our terms and establish our goalposts. BT integration does not imply Apple or Android service integration; these are different converstaions. I can pair my phone with my car, and the car will work as a headset with wheels and play music from my phone, including media control from the car's MFD. This counts as integration in my book; it may not count in yours. C'est la vie. Also, no need to shout; the acoustics in here are fantasticNo there is a BT CONNECTIOn not integration, a 2015 honda civic can read texts and ACTUALLY INTEGRATE WITH CARPLAY AND ANDROID AUTO
Cars behind me in other lanes are showing up, but not the one right behind me. Is anyone else seeing that behavior?