Donn, both the Revell 49 Merc and the 41 Willys are sweet models, but yes, the interior is hard to see, although I always shoot pictures of the interiors before sealing them in the body. Of course, having said that, I've built quite a few of both topless or with enough of a sunroof on there to be able to enjoy the interior.
I betcha that paint job has to be eye-popping in person.