Notification hit and miss, mostly miss!

Ring doorbell, unsure which version but it has a built in battery (how silly is that?).For some reason, maybe someone can explain, when I reverse my car out of the garage in full view of the camera, then passed the camera and onto the road, it is never picked up and videoed .When I return the camera only videos the rear of the car as it enters the garage. Bearing in mind the car has sat there, in full view, for about half a minute, while the garage door opens.Why doesn't it detect, video and leaving?Also, this is why I will probably be ditching this device, I receive a notification, on my phone, that I left the house, up to 30 minutes and more afterwards? Therefore it has detected the car leaving but not recorded it!