1936 Peugeot 402 Andreau
 

A 'piece' of this car appeared in the book 'DREAM CARS' in the section on Peugeot.I GOOGLED Peugeot,found a photo which identified the model,1936 402 Andreau,then re-GOOGLED for this particular car.
There are many shots of the car and it's definitely worth a look.

Cool- I remember seeing pix of that somewhere before...

Beautiful :)
It could easily have worn a Bugatti badge !

Redone with today's engineering, it could even be made a lot sleeker, lower, lighter.

But the tailfin has to go ;)

Beutifull old car!!!...402 darl mat looks fantastc!!!

fin might be necessary
 

One of the internet articles for the car reported that it had remarkable crosswind stability,and the rear fin was responsible for it.
All of Kamm's K-cars had stability issues and you'll see at least one of them sporting a similar rear fin ( actually dual fins ) as on the Andreau.
By 1978 Dr. Morrelli had licked the stability issue,using low rounded front fenders and fins placed low behind the rear wheels.