SL/R129: Recommended Book
What's especially interesting is that you can see a number of dates throughout the book. This page talks about the development of the philosophy of the roof starting with an early concept statement in 1982, fully 7 years before the car was launched. Keep in mind that at that time, we barely had the IBM PC, Windows were something you opened to let air in. It makes the development of the R129 all the more impressive and ties in with a statement from the development team at launch that this car was the most difficult thing Mercedes-Benz had ever done.
With modern computing design and visualisation techniques, it' a whole lot easier now but the R129 will always stand as a technical achievement ahead of its time.
The book is available from the Merceces-Benz museum in Untertuerkheim, Stuttgart.
but I don´t understand german
However, there is some nice pictures, and as a resource for technical stuff - I´ts worth gold, and it cost like that too :p



