also it depends on what kind of music you listen to and what kind of box you want. Sealed boxes are good for tight bass, flat response and usually the boxes are smaller but require more amp power. Ported will give you louder, boomier bass, but doesn't require as much amp power because of the port. Ported boxes are more for people that listen to hip hop/rap, techno and rock. You also need a larger box than a sealed enclosure.
There are different views when it comes to bandpass boxes, but from what I've read on other forums, bandpass boxes are very hard to tune. The best way is to design a bandpass around your sub rather than getting pre-fab or pre-made boxes as those are hit and miss. Bandpass boxes though give you maximum slam, but are geared for specific frequencies.
I'm looking to get a 2007 tc and will probably put in a ported box, but I'm debating whether or not to go with a single or dual. I already have a 10" ported box in my corolla.
I would also look into these subs:
www.tcsounds.com