Hi Guys, I recently bought my first car (2016 VW Scirocco R) about 3 weeks ago which has been great, however I have started to notice some sort of white substance forming on the wheels (19" Cadiz Alloys). This is more noticable on one of the wheels in particular, however there are smaller marks which look similar starting to appear on the others also. They don't feel like scratches at all and feel like small bumps forming underneath the top layer of the alloy wheels. After a quick google I think this might be the start of some white worm / corrosion and would appreciate some feedback. I was informed that these were new alloys fitted to the car so I wouldn't expect this to happen in such a short period of time.