Have you seen this one? It's not on your color list but close.. and only 12k miles, and nobody is biting at current ask. Seller had it on Ebay with starting bid of $42.5k and nobody even bid that...
http://www.z4mcoupebuyersguide.com/l...istingID=18815
I spotted this one when a Seattle BMW dealer had it listed at $37k and thought man, that won't last - it was gone in 1-2 days, apparently scooped up by this guy to flip.
Here's the original listing..
http://www.z4mcoupebuyersguide.com/l...istingID=18621