Looks great!! Do you mind sharing which subs you are using? And how thick is the wood u used for the enclosure? How is the sound? Why didn't you port your enclosure? Sorry for all the questions but I am thinking of doing a similar setup.
I went back and forth on the subs, but ended up with two Pioneer TS-SW2501S4. I was going to go with 2 8's, but I was kind of buying them based on the amp that I already had, which bridged is 300W RMS x 2 into 4 ohms. So most of the 8's were underpowered (around 100-150 RMS, and the ones that weren't, like the Kickers, were pushing $150+ bucks apiece, and this was a budget project). The pioneers can handle 300W RMS, have a decently high efficiency, and were the right price =).
The sound is great for my usual music (rock, drum n bass, npr ha), its more than plenty of wattage for this tiny car (for me). I did wire them up to the right rear speaker like MKVIIST, and I'm a little leery about that, but it seems ok so far - I don't listen to particularly nuanced music in the car.
I've always run sealed boxes, I just don't ever feel I need the extension of a ported box AND then I would have had to go with 8s or one 10 as the necessary box size will go up (and I was hell bent on using the amp's capacity AND wanted to fit it under the floor as well) - the box I built is about .45cf per speaker, and these pioneers are meant for that kind of extremely small box. 1/2 MDF since it is so small, with extra bracing in the middle of each "section".