Hi
In terms of weight, there is something new.
With the use of the rear wing years ago, the attachments for the folding spoiler remained for lack of alternatives.
About an acquaintance I got now the R8 GT rear panel.
With the use of this one-piece panel many items could be disposed of, which resulted in a weight saving of 1.75Kg.
Looking through the Audi spare parts catalog and researching my employer VW,
I found out that the Spyder B & O amplifier has a magnesium heat sink,
making it 0.5Kg lighter than the aluminum amplifier on the Coupe.
Alu 1655g
Magnesium 1070g
Tom