I agree...the GM cheap-a$$ interior is a deal breaker for me. When they said the interior was now "world class", I was excited to see it. Then I saw it and almost started laughing...or crying.
How bad is it? I met up with a Z06 driver (I think I told this story once before?) at a gas station. We were both checking out each others cars. He wasn't a car guy (and was rather fat too..BARELY fit in the Z06 he was so large) and really had no idea how old the Supra is. He said "That's a nice interior on your car...." He went on to comment it was as nice as his C6, and he really liked how the center stack was tilted towards the driver. His face dropped when I told him my car was a 1994....
So in effect, the Z06 has an interior comparable to a 1994 car. Personally, I think some of the materials are a bit nicer in the Z06 than my Supra. But again...my car is 12 years old.