a great choice. Back in 2011 I had the pleasure to test-drive it at the (internal) BMW test track in Leipzig, together with friends from the LOG and not to forget Walter Lange. A professional driver gave us a ride and it was just unbelieveable what he was able to do with that "beast" 
Never had a chance the beast again, but drove the iDrive several times afterwards. I liked them both, but loved the beast.
Once more, I like your spirit - without paradigm about "appropriate" car´s.
Best my friend,
Oliver
