I know and apologize if you took offense.

Wasn't meant to be. It's a different tactic I employ now to get more and more people comfortable in doing their own simple quick research versus extreme spoonfeeding. It's a thing that some people ask for recommendations and when offered, they ask more questions about said recommended device without realizing that the answers they seek is already available through a single search and so rather than waiting for generic answers to generic questions. They get what they want.. Boom!
Thinkware F770 review by blurjoey. This has day and night time videos. View on a good high res display for max seeing...
Thinkware F800 Pro.. Yes, you can get either from online shops like lazada.
As for view quality in the rain. You can check YouTube videos. Personally, I won't expect much especially as the cams will be behind one's windshield and as we all know clarity during rain, heavily depends on the view out of the windshields. Wipers and glass no good, makes image blurry.. There are no cheap sensors and on-the-fly/post-processing that can help. I say cheap cuz the really good capable tech will obviously be quite expensive and won't make profit in the mass market today. This ain't some CSI TV episode where characters say enhance and magically the blurry cropped up image becomes UHD..

So have to manage your expectations and remember that most times, both your car and the other plate number are moving images, not still and centered. There's no magic in science. Just best efforts.
I watch different brand expecting this premium price video quality but video quality seem not much different. Blackvue and thinkware if budget allow both are good choice.