I have a Carbon Fibre Targa on my Supra and it weighs like 1-2 lbs less than the Aluminum OEM Targa (Previous owner put it on after losing his OEM targa on the highway, FnF style

) . There is no point in a CF roof, not even looks.
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"Sweet Subaru, sweet Subaru, send your BRZ unto me, for the roads of the unworthy must be baptized in speed and glory."
- The Ancient BRZ Sacrament by Zaku