Oh, it has nothing to do with recognizing the car (or actually the motorized chassis as in case of this picture). My post has been intended as a rather humorous, as well as slightly sarcastic, comment regarding the words of apparent "obviousness" some people tend to include in their answers
I'm able of recognizing many strange and obscure cars, as are most of the people here. However, I'm not stating that they're "of course" or "easy" or anything like that.
Guess it's been just another hint for me, that sense of humour is valued much less than prowess in guessing cars. I promise I'll try to develop an appropriate stiff upper lip from now on