I have some leather left over from the seats and dash, so I'm using some of it to cover part of the inner guards/fenders.
Most of the car's interior will stay as-is in bare aluminium alloy, but I'm thinking that covering the inner areas mentioned will tone it done just a little.
Add a little visual "warmth" ....
Here's the right hand side done, and left side with contact adhesive applied ready for the leather ....
Cheers!
Glen