I am using the Red Tiger F17 Elite. I love it. If you are interested let me know and I can get you a discount code. Also I have a review here on the forum.
Have a Viofo single view camera in the wife's Frontier. It already paid for itself once due to an elderly driver turning into her at a light, so can recommend it as a good brand. Good honest test of a group of them here:
My favorite part of a lot of the Project Farm videos is him constantly having to repeat weird Chinese brand names. "At 6.5 seconds, the Goyofix was faster than the Voolonub, but a little slower than the Huggocup."