In Aden we had two cars, the first was a Fiat 500 and this was replaced by a Fiat 600 if memory serves me right. The reason for the exchanging was due to some complex matter whereby a member of the services could buy a car and if it had been held for so long then tax wouldn't be due upon returning to Britain (or something like that - at any rate, it was a legitimised tax dodge!).
The photograph is a rarity as it is my father at the wheel. The camera that recorded our life was his and nearly all photos were taken by him. The shadow at the bottom of the frame is my mother's!