The image shows the current situation with tardis models, The inside texture off one wall uses the same texture as the outside, both are 'yellow' this makes it impossible to modify the inside texture without changing the exterior side wall to

On this specific model of tardis (1963) both the 'red' and 'yellow' walls (as seen above) use the same texture as the outiside

I suggest that the exterior wall and the interior wall use seperate textures, this would allow me to modify the interior texture without changing how the tardis lookson the outside

TL:DR 

inside and outside walls both use the same texture, which is annoying

If anyones wondering why this would be useful, it would allow for bigger on the inside texture packs

for example I could overlay this image

onto the inside segments off the texture to make it appear like its bigger on the inside

 I support this!

That's...very clever. That would also fix a little issue I have with the "Bad Wolf" Exterior.

By the way, nice console room.

I'm making a thread dedicated to Tardis aesthetic related suggestions. May I add your suggestion in it?

 Sure

 K. I added it