Cheers for the pics Anders. You can buy front "ducts" exactly like that for a couple of hundred quid from Rexspeed or HKS Kansai to name but two companies and they're in dry carbon.
Never seen rear ones though, but the rear brakes do a fraction of the work.
Wonder why they went with steel for the fronts? Worried about stone chip damage if they were carbon?
Either way, they go almost no way toward justifying the £10k cost of the Track Pack.