That was something else I thought about while reading this. I helped my brother-in-law install a backup camera on a nephew’s car once. I don’t know anything about that market, so I have no idea whether or not it would be a worthwhile niche for Wyze to explore. Part of that project also involved installing a video display to show the backup camera’s view, and I think that ties back into the idea of something like a peephole camera needing an accompanying monitor[1].
Something like this? 
I’m curious about how she gets the picture. Phone and cameras both on an in-vehicle Wi-Fi network? That seems like it’d probably be the easiest way in a properly-equipped modern car. 