This photo was taken by elmer Batters, and on the seats backrest is hand written all in caps first line: TO BENEDICT second line: BEST REGARDS and is signed E Batters
I have it on the inside double page and on the back cover of a book by TASCHEN, titled in french 1000 dessous histoire de la lingerie (1000 undies; the story of lingerie) ISBN, for those interested is:978-3-8365-0507-9
Book came out in 2010, so should be available through your local bookstore.
The photo is taken in a automatic 230Sl, with what seems to be a total of 402 km. on the speedo.
Something strange is happening in the photo, as the transmission stick seems to have disappeared and there seems to be two ashtrays one in front of the other.
Besides that photo, the whole book is interesting!
Best regards,
JP