Looks like someone (evidently someone who doesn't want to be public) in China is taking old Nissan Patrols and heavily modifying them. I don't necessarily agree with the writer of the linked article that these were built by someone with military engineering background.
Nor do I agree that all of these are Nissan Patrols. The bottom vehicle in the snow is clearly a Toyota (you can read the Toyota faceplate in the pictures on the linked wiki page) and I believe most if not all of the others are Toyota Land Cruiser's as well. Nor do I believe these vehicles are winning every contest (hill climb and otherwise) in sight as noted either. These vehicles do not possess roll cages or other serious equipment needed for real competition.
The author of this article appears to be merely a backer of anything Chinese and trying to put out there how great these homemade Chinese vehicles are. If this is Chinese auto journalism, Motor Trend can sleep soundly.