Once installed, the 46-liter, high-resistance polyamide trunk proved cavernous and easy to attach or detach. The locking system takes a little getting used to, but once you do, it's a no-brainer. Initially snug-fitting, our trunk became looser over time on its mounts, probably because we routinely exceeded its 3-kilogram (6.6-pound) maximum weight rating-one demerit for that. But bonus points for the included passenger backrest, which you have to drill a couple of small holes to attach. The DP trunk clearly wins in the looks department, too, its array of circular red lenses resembling a UFO. The last one I saw, anyway.