mixed bag but it probably hasn't been a great idea for ages. I haven't actually seen cameras in regular rental cars yet but I'm certain they gps track them at least. Same with rental trucks from the hardware store. Seems like fleet vehicles were the first to get the cameras (and attendant machine learning monitoring your driving), but it's spreading. And its all 4G streaming video too (probably with some significant limits for bandwidth purposes, maybe it only streams a low res by default or slow stream of thumbnails)