Pioneer "flat" subs

I was wondering if anyone has taken a look at these. I don't have much space in my Taco, so it limits my options.

Personally, I don't trust them. When someone comes out with one that produces the same volume and quality over the same range as my Resonants, I wll consider changing my mind.

I was although thinking of running one of those, they make good sound inside the vehicle but the sound doesn't travel outside far, so don't hope to be heard.