They are 'M' style caps. I am often tempted by getting them on my M2, as they didn't come from the factory with them. However, I am regularly put off the temptation when I see a 116d with them fitted.What's with these fugly winged wing mirrors that the chav contingent are slapping on their lowered 318i's ? Seem like they are an essential addition to go with their retrofitted scrolling indicators and 3D number plates...