It isn't a '74, it's a '70, and the car was in Mopar Muscle. Afraid I don't remember which issue, but as TC said, it was 2-3 years ago. IIRC, the car was put together with pre-production body parts and the lines are to assist the engineers to make sure that the body panels coming out of the forms would line up correctly on the car before allowing the machinery to go into full production. Every mass-produced vehicle has at least one model like this, but they're usually crushed. I don't remember the circumstances that led to this one surviving.