Well Im wanting something that is tall enough to pack camping gear into ( sleeping bags, bed rolls, coolers, hunting gear,etc) that doesnt take too much away from my mpg, and is capable of mounting the spare tire down into it when empty. I saw one that a guy had made for a jeep that actually had a swing arm to mount a spare tire onto that could either sit up inside to basket or flip back and rest on the hatch. I wish I had taken pictures but I was on the go as always.