Im not sure how it would sound in a del sol, but so far my 10" MTX is sounding really nice in my civic. I listened to JL and MTX side by side in the good guys, and the MTX sounded better to me.

Also, one of the employees took me out to his jetta where he had 3 12" MTX's. The bass was so incredible that it was impossible to hear anything around me, and I was OUTSIDE THE CAR.