Not meant to be how it must have sounded.....
I just HATE anything in the way, my way anyhow, of the tailgate like the hitch mounted things create. I even sort of hate how my swing away-s are in my way requiring at least 1 step to swing out, 2nd to make sure it's latched well, then to actually open just the top half. Luckily it clears the jerry can on the left swing. It's all kind of crazy.
Underneath is pretty stupid too, aside from mass location which is fantastic down so low.
I also drive a BMW 5 series wagon, on long trips, and think the mini spare they provide is a total JOKE on consumers. So, I carry a matching full size on identical wheel mounted vertically in the cargo area (it won't fit under the cargo floor!) and have it secured by two heavy duty ratchet straps that start at the rear seat latch point about 14" off the floor (it's what the seats latch to against the side wall near cargo area), then make one loop around the tire through the wheel closest then across width of wheel (wheel spokes are toward passenger side window against the wall), back around tire at other side, exit out and down to the metal floor tie down that is bolted to the frame. That's ratchet strap #1, custom cut to remove excess at tailgate for tidy management.
Strap 2 is similar but across different section of wheel so as to create a usable storage area inside the wheel that I can reach from tailgate. Various things fit perfectly like mtn bike riding pack and a helmet, or a small day pack for hiking, or in winter, a bulky down jacket, or sometimes a down sleeping bag. A section of blue camping pad type foam is held in place by the 2 straps, this acts like a little basket for the wheel storage behind it. There is very usable space between the wheel and the window between C and D pillars too. My ARB 37 fridge is tied down against the floor just in front of said spare tire. It's quick release lid makes ease of inner basket placement. After all that, I still have about 32" clear width and 72" tailgate to back of front seats.
Maybe some of that will help with ideas for a spare when utilized double the interior space.
Here's and idea, remove all three 2nd row seats, freeing up gear space massively, place tire vertically in cargo area for ease of access if needed.
You've all seen front mounted receivers right....? Why not mount the freakin spare out front ?!
Anyway, this is just one aspect in how my 2004 Disco is better than the newer models. Tailgates are fun but at what cost to practicality?