My wife has this problem with her Hyndai and I have the problem in my 2022 F150. Same spot in both cars, happened on previous iPhone 13 and now on 14 Pro. To me this is an interference issue and nothing apple can solve. Someone near by is likely blasting rf way out of spec which completely kills your bluetooth. As others have metioned, phone calls are fine through these areas, it's the connection between your phone and car for wireless carplay.
In the Denver Metro area for example, in Parker at i225 and Parker road, it will blank out, and in the south near Lone Tree on i25 and Lincoln, it will die as well, but its much worse in that area.
IMO with a bit of an rf background, this is't something Apple can fix. The vehicle manufacturer would to incorporate better protection of its electronics from outside interference.