French Air Force Vehicle Insignia.

One of our members on the sister site WW2Talk.com posted this image of French Air Force personnel in Dunkirk 1940.
Can anyone identify the unit denoted by the star on the mudguard?
Any further info would be welcome too.
Thanks.
Click image to make it bigger.

 

This is a nice Peugeot 402 introduced in 1935 and ispired from
the Chrysler "Airflow" . The 402 was the rival of the Citroën Traction
Engine: 4 cyl
Cylinders: 1991 à 2142 cm3
Power : 55 to 63 cm
speed : 120 to 125 km/h
produnced between : 1935 to1941
Production : 58 478 ex
Résultats de la recherche d’image Google à partir de http://www.caradisiac.com/media/images/collection/peugeot_402.jpg

 

Wessex, I spent some time looking up French army insignia's and I haven't found it yet. However I found the list of fighter squadron insignas listed and it was not on it. So at least you can narrow your search. I will ask my friends.

 

Thanks Skipper, I thought you might be able to help.
Maybe a Corps or Army level formation?

 

I have friends who are both collectors and reenactors who might be able to hep. i've seen this symbol before.