We recently had a Colourlock training at OGHQ while I was working on the Corvette at the same time. I asked Ram and Lars about the terrible "alcantara" in the C7 and if it could even be restored. They knew exactly what to do and broke out a leather sanding pad.
Normally you would use this to smooth out leather before fixing it, however it works great on bringing back matted down alcantara by roughing up the fibers. I was surprised at just how well it worked, so I'm making it available in the store.