Not a Buick, but take a look...

[Goat]

I got pics of it and will email to someone to put them up since I'm working...

It's a camaro z28, but the package shows a 70s model and on the inside is a late 80s or early 90s and I'm leaning more toward the early 90s cause of the front bumper style.

However it appears to have a steel bottom and body that was produced on 83.

 

[Goat]

I can send pics to you if you wanna see just leave your email and you will get them.

 

[Goat]

It's a error car they done.

 

[87Limited2Turbo]

all of them are that way. it's an error that to my knowledge was never corrected.