New Subaru advertising

I think description no needed. Just few words about creation this video..

Company Subaru has decided to create a series of the preview trailers propagandising new sedan WRX STI. The company has asked rally pilot Dave Mirra to take for a drive several people under one of platforms on the 305-strong car and has catch all this action on video.

As a result it has turned out five preview trailers. We too have looked them and now we ask a question and where to get this knob in the form of a skull on the aerial?