About a year ago I found one under the driver seat. It was yellowed and very brittle. It broke into a million pieces when I was removing it. Now just a couple minutes ago I found another one under the carpet in the hatch area(stripping the car for paint&body). This one is perfect and it looks like it was printed yesterday. I'll post it sometime this weekend.

 

build sheets are located, haphazardly, thoughout the car. i found the one under the drivers seat also. There may or may not be one above your gas tank also.

 

My Firehawk has 2 original build sheets but just looking at them they appear identicle. Are they or did 3rd gens really have 2 build sheets?