That render by bmwe30m3 seems like it is rendered using Advance lighting: Light Tracer (DSC) The setting seems to be set below average (slight mottled shading on the floor)
The AA in DSR usually very crisp. Light Tracer's setting is very simple compare to other renderer such as Brazil, Vray and Mental Ray. Lighting setup is also easy too, it is best to use with 'Advanced Lighting Override' material to control the material's reflection of light.
The downside of this is that it could take alot longer to render a decent image compare with a same scene render in Mental Ray.
Just made new rim by new tutorial, perfect tutorial.
It's like, making half of spoke and then splitting it to 5 spokes.
Bee * R rim's replica.
E: Oh, i have to fix middle of the rim, looks little bit doggy.