Alright so I've heard a lot of arguments for plastic, some against it, and none about carbon fiber. So what's the way to go here?

I'm considering getting into composites and I may, if there's a market, start making some carbon spoilers as well as carbon OE style door cards but I'm a ways off and a couple hundred fico points away from that at this point. That said, if anyone knows if there are any other good oe spoilers out there worth considering let me know. I really like the low height of the m5 spoilers so that could be an option.