I did it yesterday. I ordered a Z8.
It has the same drive train as the M5 (but with rack and pinion steering), the same size wheels and tires as the M5, same engine, transmission,and rear end gearing as the M5. Call it a close cousin. It just wears a different skin (albeit a little faster!!!)
Therefore, I hope I'm still related to you guys. This is a great site and I appreciate all of the participation and enthusiasm. I hope to continue to receive and give my opinions, for what they're worth.
Thanks to all for your help and support in my decision.