add on trunks for SUV's and vans

by that definition suv's and vans dont have trunks because the storage space is not enclosed

why would you want an enclosed storage space? with a SUV, you can easily access the cargo from inside the car. Its like this. In my country a parked car with a visible bag (even worse, a laptop shaped bag) inside is an invitation for some thief to smash the window and grab the bag.

I propose that add on trunks be available for sale. My suv has a custom job but its less than a foot high. Simple plywood creates a box with a hinged cover. The walls of the box mimic the shape of the bottom of the cargo area and all visible areas are covered with a rug the same color as the original. Commercial ones would be either plywood or hard plastic and would be ofered in various heights from a few inches (a hidden compartment) to over half the height of the cargo area. Not too high so you dont block the driver's view.

Why not buy a sedan? Because I cant afford a new car at the moment and sedans tend to break down due to flooding which is common in my area.

And I cant bring all my stuff with me all the time because its heavy