This is my buddy Wally's Mazda MX-6. We just finished an entire SQ system in this car, including (4) 10" CDT subs squeezed into the trunk. This system has EVERYTHING. Watch out for him at Greenville/Spartanburg area shows in the near future. You can check out this outstanding car here.
My friend Chris owns this Nissan Xterra. We started off by putting (2) IDQ subs and (2) amps flush mounted into a false floor. It has since evolved into a more simplistic single sub & amp setup. Using only the most high-end equipment, Chris's Xterra sounds amazing. See all the details here.