By the time the E92 GTS rolled out, BMW M had mastered carbon composite manufacturing at scale.
Yet the GTS' trunk was metal- with a car already prohibitively expensive, it seems the engineers got stopped short.
In this Special Series, I loop in my experiences with this OE+ carbon trunk route to creating a lightweight CSL style trunk for the E9x M3.
Cheers,
- Matt / @m3_epoustouflant
Wing Reinforcements
Alsatek can add additional carbon layers by the traditional mounting points for GTS and GT4 wings. It does not have any functionality nor fitment aesthetics. It does add a few hundred grams.
Installation Notes
Professional paint & body installation is highly recommended.
Been done, done that.