thanks for the replies.

the 2 car scenario is not a possible one for me given that I live in a loft with 1 parking spot.

the issue for me is whether the z4 coupe will offer a better overall experience.

the look of the Z4 coupe is to me one of the best recent designs, and to be frank trumps the crossfire by far in my view...but I am also very interested in whether the overall driving experience would actually be better in the Z4 coupe, I like torque and have heard rumblings that the 3.0si is not torquey.

BTW the economics of it don't necessarily dictate since the crossfire will arguably depreciate at a much higher rate making its real cost probably higher than the Z4's.