NFS UG1 Texture Leftovers

while i was checking car texture files hoping to find something i somehow found this in the eclipse textures, i have no idea why is there a texture of a car interior but there is no interior in the ingame model since the model has no interior. but i wonder if it simply a beta leftover or a unused piece of content that originally meant that nfs ug1 was suposed to have interiors or it was just a leftover from another game from the nfs franschise. but is it just me or it actually looks like the intro interior seen in the actual game? i don't actually know. UPDATE!: i just added some new car interior textures in the leftovers. but because of the attachment limitations i will only show three in this post. the eclipse will stay in this one but two of the new interiors will be added (dodge neon and lancer).