In my vert, it looks like there is a space for a spare tire in the trunk (pic attached)....which of course is stored behind the seats...

Any ideas what other uses this area holds?? As well what I can use to seal the hole in the bottom.....

 

You are right! On a non 'vert, that is where the spare tire goes.

I store my premix and roadflares and stuff in it.

 

That's where you store your spare tire once you move it to build a sub enclosure behind the seats.

 

You speaking from experience? If so do you have a pic of your creation?

 

That's where I mounted my CD changer and keeps extra stuff, tools, fluids whatever...