I had to use tie downs to keep my trunk closed for my Wilson Sasha's, so I ended up buying a cargo van. It doesn't handle as well, and when I hit a pothole, I sometimes blow a tube, but overall I'm happy with my decision. If I can just find a way to make the orchestra sound like it's in front of me, I'll be all set. Maybe some mirrors?
I don't hear as many of those 1980's and 90's "booming" systems anymore. Maybe I'm do for a road trip to Seaside Heights NJ.