After having an Astra Sport Hatch SRI 1.7DTI from 2005 to 2008 and a Mazda 2 TS2 from2008 to 2011, I realised that simpler designed Astra'salloys were easier to clean using a drive through car wash. They were also easier to hand clean. Does anybody have trouble cleaning the brake disk powder from thePremium Pack alloys in between the fiddly parts. I'm assuming that the original Acenta alloys will be easier to keep clean????