Specific recommends? for china import wireless backup cam?

Cope said
No experience but me and pops have been kicking around the idea of putting one in my race car and have it wired on all the time.
This way when I take the car down the street for a "test" I can change lanes...

:)

Would work.
My advice is the bigger the display the better. 3-1/2” is a little small.