This would be perfect for someone wanting to use a second battery....very nice!!!
that does look cool - i have an suv and didn't really feel like having a battery in the cargo space in the back (fumes? dont' know about that). i got a plastic, vented marine box for a battery and i'm getting a local welder to make a small tray to attach to my frame member in the back right quarter-panel.
as long as it's a sealed battery you shouldn't have a problem....especially if it's a dry cell type battery...like an optima or the like. I had a second battery in the spare tire area of my gti for about two years without a problem....and I drive a hatch
or maybe that's why I'm a little loopy sometimes
oh yeah, and btw - this is not my auction, just thought that someone might be interested in it