What originally was an anisotropic shader test to recreate brushed metal/aluminum, expanded to become a modeling exercise as well as a test for the mia_roundcorners node. Also thrown on top in AE is depth of field via the Lens Blur filter, using a depthmap to drive the focal plane. There is also a small bit of chromatic abberation applied using The Foundry's Tinderbox2 plugin.
Notice where the NISSAN emblem characters meet the surface of the valve cover? That's where the mia_roundcorners node really provides that extra bit of detail.
Valve cover modeling workflow: Poly -> Sub'D -> Poly
Nissan text emblem: AI -> Beveled Poly
