I was researching for images on Mercedes Ponto in 1950s' and stumble across this photo with big "Voigtlander" banner on the car and the woman ribbon.
Did Voigtlander sponsored some sort of Beauty or Photo Pageant in Sweden (I presume the picture was taken there) during that period?
I don't see a camera or lens anywhere, so it cannot be just a company ad.
Sign on the car top according to Google translate - Bring you camera. For present and future.