Would they need a heavy lift truck to move a model though? Looks really detailed for just a model.
Also if it was a model a bit strange for the tires to be flat.
What do you think is more likely -- the idea that Russia managed to capture an intact patriot system and ship it to China and have it be hauled around China on a truck in broad daylight without any visible military escort in proximity to it... or that it's a particularly accurate looking metal model which could be made for any number of reasons (for a tv show, for a theme park, for use as a representative target for military sensors/identification)?
Unless there is strong evidence to the contrary, it should be beyond the pale to even entertain the idea that this could be an actual patriot system.