I don't get it. Manufacturers go to the trouble of fitting cars with body-color bumpers, then they omit the bumper pad. The result? Gouges and scratches after the one use. Also troubling about the 2007 Nissan Sentra is the small trunk opening that makes it hard to pack bulky items, a problem that will be exacerbated if the subtrunk is in place. Subtrunk? There's a fold-down panel near the rear of the trunk that creates a hidden space between the seats and the trunk, though we're not sure for what purpose. In any case, fold down that panel as well as the split rear seats, and you've got a fair amount of area for transporting long items.