I hadn't heard of them before, till I did a search....
From my quick search on the internet the Blueprint subs are made by a home audio based company called Niles Audio (http://ww.nilesaudio.com). There isn't really a reason not to use them in a car exept that they usually have higher impedance. If you're bent on getting these to work, do your homework.
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Hey...I'm looking for an RTI ramp...Any volunteers?
Enzo Ferrari said it best, "Jeep....America's only real sports car"