i'm afraid of that i can speak english in Guangzhou, but my chinese is not good so is it problem?

As long as you can speak some simple Chinese, it will not be a big problem, at least in places like airport and train station, for there are signs in English indicating the direction. Well, if you really have difficulty to cope with language barrier, you can consider having a Chinese translator or guide.

As for the Pruis car, I’m afraid you need go to the Toyato 4s Shop, maybe you can find something useful. I know one located at No. 231 of Guangshan 2nd Road, Tianhe District.