The article itself may not be of any importance but that you got it from a magazine with a more than obvious knockoff name without questioning it is. This thread is going from bad to worse very fast with many people having some narrow-minded opinions a very large and complex country. There are plenty of bad things to say about China as it is today but this still does not mean that we can throw generic blanket statements around.
To answer your question: Any car produced by Brilliance Automotive would be legit and they produce a lot, exactly which I do not know. The Mini obviously isn't a copy, besides a box like shape and the color of the roof they have little in common, maybe inspired by would apply but this is not uncommon anywhere in the world. The only car I know for sure to be a knockoff out of those 10 is the Chery QQ since there is a documented lawsuit which I believe GM won....in China.
I am in no way defending people who are stealing other peoples ideas. The moment you make significant changes to something it isn't other peoples ideas anymore. When it comes to the WP40 I am not seeing knockoff besides possibly the incredibly cheesy name. It looks a little bit like a Tunze but does not operate like one. This is a significant change.
There are very few totally original products in the world so the word knockoff is pretty easy to use. China does not exactly have the world monopoly on these sort of things. The biggest knockoff in history is American (Microsoft) and so is the biggest patent fraud (Bell). From my home (Sweden) you have IKEA and H&M which I am sorry to say is garbage and often dangerously close to plagiarism. China produces more goods than the US and EU combined so of course there is junk made there. Without a doubt there is proportionally more junk made in China than in the US or EU but that does not mean that everything they make is a knockoff or garbage. They also produce a lot of things intended for a third world market that finds itself in our homes via Ebay etc with astronomical markups.
How about some reviews on the WP40 based on the actual performance of the item.