Medical parts are a great application.
BMW started using CF for the M series roof (replacing steel that weighted 2x the CF) - it retains the strength too. In a performance coupe you want weight low to ground (reason many 911 racers prefer no sunroof).. They also use it in costly 7 series, I8 and the I3.
When used as mirror caps and dash overlay pieces - it's just for "the" look. As a front air dam - it would be stronger than plastic so could take rough treatment better. I see many using CF drive shafts being used.
Before I retired from DOD, I over saw some work by Boeing. The then new V22 Osprey Helicopter/Plane is constructed of carbon fiber. It's big advantage over alloy is that it can be molded quickly in complex shapes and has great strength and light weight.