Same goes for the subsequent impact bumper Targa's and cabrio's - they were were all brass, and either chrome or (later) painted black?
I think, only the coupes used the aluminium variants. Satin first, and then later black anodised for the SC models - is that right?
Possibly, the Targa/Cabrios had to continue to use the brass so that the finish could be made to match the pressed-steel Targa/cabrio rear window mouldings, which could only be painted or bright chrome-plated (cannot be anodised obviously, and difficult to match to satin aluminium).
Unfortunately, I have purchased Targa/Cabrio-specific 'chrome mouldings' for my 73 Targa from d911, but they actually turned out to be satin aluminium.
Serves me right for being cheap and buying repros, because they were faster and cheaper than chrome-plating my originals

