It feels the same diameter as all the other wheels. I have seen the threads discussing the wheel size and diameter and to me they are all the same
except... The Leather Padded Sports Steering wheel

and the Standard Alcantara Wheel & Standard Alcantara Miltifunction

To me the wheel has the same size and diameter as all the standard wheels. It maybe millimeters different and the bottom of the wheel is a little flat, but has the same general feel.
The rumored paddle shifter is just that rumored. I hope it is true, but the only buzz I have heard is on the forums. Nothing in print from Porsche about the R&D or marketing of such a product.
Questions??? Call, Email, or PM me
Thanks
Aaron
www.SuncoastParts.com
1-877-923-1700
acarlton@sunsetautogroup.com