Bro, Chery QQ has an edge over others due to its features list BUT the big question mark is about its quality, finishing and reliability. This is my personal experience. So, pls think twice atleast before going to buy QQ.
Moreover, the engine technology sounds good i.e., DOHC etc but from which country, its either China or Germany and economically speaking, Japenese technology is best in the world. Then comes Korean.
Good Luck.