Onto the interior.
I am going to use seats from an AMT 1988 Mustang kit that I just recently acquired since it has two sets in the box. I'll also be using the center console out of it as well.
First off the seats sat too low for me.
So I managed to snake a small Lego to use as a platform:
Seat is right where I want it in regards to height after sanding the towers of the Lego down a bit:
So with that.....let's add some carpet to the equation: