This subwoofer box from BBox is great for those with smaller cars or simply those vehicles with limited space. Made with MDF and carpeted, this box feels nice and sturdy when in use with little to no wear and tear reported by users.
You should be aware that the smaller size of this speaker box has led to a much smaller gap for your speaker, however. This can be awkward to alter and can affect the sound, if you do decide to widen it. Thus, if your sub is larger than 10 inches in diameter, you may want to choose a different option.