Not in IMCDb
In IMDB http://us.imdb.com/title/tt0047073/

AKA:
El diablo de las aguas turbias (Spain)
Le Demon des eaux troubles (France)

1.- Peugeot 203 Familiale??? 2**
http://www.imcdb.org/vehicles_make-Peugeot_model-203+Familiale.html


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2.- Used as taxi 2** (theoreticaly in Tokyo)



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3.- Backgrounds with only 1*
Volkswagen [Typ 1] Sedan ???



Citroën 11?? (black, side view)


Unknown


Clear blue parked at right unknown


Blue taxi before double-decker red bus


London double-decker red bus


Some dozens of backgrounds cars (at least a Renault 4CV in rear view)

Done:
http://imcdb.org/movie.php?id=47073