I think it mostly depends on aesthetics of your console, will you be using some storage in the top of it?
I think my first question would be do you want a stealthy install, subtle showoff (the W7 is pretty sexy both front and back) or wild?
For subtle I would do a downfiring setup, keep it about 3" off the floor, this will have an effect of "loading" the sound waves off the floor increasing output.
Next option I would do is hold the console back even with the back of the front seats and have it rear firing, maybe slight angle up, but aiming won't have any effect on the sound or output in this configuration, just a good looking setup that shows you have something.
Next if you want to go all the way back I would think about maybe up firing the sub, or maybe doing an inverted mount to show off that ass end.
In my truck I built my own stealth box in an 08 center console. I was able to get approximately 0.93ft^3 of air space and I think almost 9" of mounting depth while still maintaining 4.5" of storage up top
Now I have also been tinkering with a new larger 1 off center console that will go from the dash to the back of the front seats. Ported box rear fire for a 12" or maybe sealed for a 15" and if I remember right I can get approximately 2.75ft^3 with some storage space. I haven't had much time for this so no pics, but just something for you to think about.