This post is to do with the rain sensing wipers on this car. As already mentioned we also own a Proton X70 which also has rain sensing wipers. I can and have use as a comparison. Back in 2008 I owned a BMW 745Li (now sold) which also had same type of wipers so I can also use that car as a comparison. Sadly the auto or rain sensing technology on this car is far from ideal. In fact one is better off thinking that we don't have rain sensing feature and use them as conventional wipers. The following two videos will demonstrate my point. These wipers sometimes don't work and if they start working, they don't stop even after the rain has stopped and the screen is clear. 
This guy below is Filipino who owns this Chery. He is speaking in a mix of English and Filipino but he has put in sub-titles in English. Here we can see that the rain sensitivity feature is pretty useless and has no impact on the operation of the wipers function.
By comparison the Proton and the BMW wipers work like a charm. The sensitivity feature on the Proton works perfectly and its performance cannot be faulted. My old BMW, in addition being rain sensing they were also speed sensing. Meaning the the faster the car went the faster the wipers worked and when the car stopped (traffic light etc.) they stopped.