trk2loud

what would a truck fit into for doing some comps. I missed not doing any competing it was long hard summer without bass. But i am now on the comeback with some stuff just bought the Audiobahn AW1208Q and right now it is down to either the tantrum 1200.1 or the xenon 1200.1 not sure yet. But me having a truck am i in a different class or something and what class would that be? And also i am sure what type of box to build so any ideas would be awesome. Thanks for any help.