Personally I loved the treatment that was given to the Silver Arrow and when I sold mine missed it, as the standard treatment of the SL60 is not - to my mind - as attractive. So, I was interested to see Gee's car, as it melds the two nicely. Whether it will adversely affect the SL60 value I don't know, but buy what you enjoy (on which point I've just bought another Porsche 928 S4 - RHD Japanese import with less than 30k miles, lovely little thing)