I am a huge fan of the optional (281 code) AMG performance steering wheel available for the 45. For anyone fortunate to have one I have a few questions. What is the diameter of the wheel? What is the thickness? How does it compare to the standard flat bottom wheel? Does anyone know the diameter and thickness of the standard wheel as well? I'm considering adding this AMG to my sport package CLA250. I know it's expensive but the one item you'll always have a grip on is the steering wheel so I want it to be as comfortable as possible. Plus I do love the look. Any feedback would be appreciated.