Perhaps I wasn't too clear in my methods. I did find the same Jean Gras blue oval badge that you show, which I compared to an Amilcar badge showing that their shapes are not at all similar. This indicated to me that the puzzle car was NOT an Amilcar, it did not indicate that the puzzle car WAS a Jean Gras, as the badge in the picture is unreadable. I then looked at a number of other cars with the distinctive radiator housing of the puzzle car. None of the cars that I examined had a similar oval shaped, badge. like the car in the picture. Therefore, because I could not locate a picture of a car similar to the one in the picture, with a similar shaped badge, nor could I locate a picture of the Jean Gras racing car (I did not see the puzzle picture on Google), and because the enlarged puzzle picture showed the puzzle car to have a badge of the same general SHAPE as the Jean Gras sample, I GUESSED (as I said) that the puzzle car MIGHT be the Jean Gras.
I'm sorry that you find my guess suspicious, and you may withdraw my point, if you choose, as that is your prerogative, but, as to my methods, my conscious is clear that I have strictly followed the rules.