Battery options BESIDES Optima?

Why on earth would you do that?

Vanity.

Instead of simply relocating the battery to the trunk, I am hiding the batteries under the false floor in area between the trunk and the rear seat my fb barracuda.

I plan to have street rod style upholstery in the trunk and do not want to see a battery box. Underhood clean, trunk clean.

and illegal in some states to have hidden compartments lol

hehehe