I had this fitted in Toowoomba yesterday, it is a Polaris CMV-2. It clips on the sun visor and is only 8mm thick so you don't notice it is there when you flip the visor op it almost goes all the way to the roof.
The colour screen is very clear and crisp image and the 170 degree camera can be rotated up or down to get the best view.
It took the guy 2 hrs to fit.
Total $477 fitted
Very happy camper