you might want to supply the max height, width, and length you have to work with. I don't think anyone can help you w/o the info on your trunk, unless they have the same car.
You also wouldn't want to build a box and find out it won't fit into the trunk opening. Believe me... it's horrible. //content.invisioncic.com/y282845/emoticons/pissed.gif.9f665f96bc89e98e708dabd4580bb591.gif