I have a 2000 Mustang with the Mach audio system taking up a bit of physical space at the top of my trunk (amp/speaker rack), so I only have 11-11.5" of trunk height to work with. I could either fit a 10" brahma sealed or possibly ported firing towards the trunk, or I could fire a 12" (even a 15 maybe?) upwards in a sealed box. What would be my best option here, considering money doesn't matter in this situation?