Was in an Audi dealership over the Easter weekend and I specifically went snooping around the cars sitting outside checking out the hubs..........guess what, many had rusty hubs. The Audi hubs don't look as big as the BMW equivalent nor did the surface area of the hubs I saw appear to be covered in as much rust. My E92 335d had rusty hubs
But, even the brand new RS4 sitting in the showroom had a couple of rusty hubs.
No consolation but I thought I'd mention it.