John Olsen has been reporting about the activities of SL owners for over 20 years in the SL Newsletters. Many consider John as the world's foremost authority about not only SLs, but collectible Mercedes of all types. For this book, John has invited leading enthusiasts in the SL hobby to join him and share their expertise for the ultimate SL resource book. No SL stone has been left unturned. If you are serious about SL ownership, you need this book.