[Challenger_Nut]

How have you determined that it that it has a flip top cap. I have blown up the photos of both the red and the black car. The photo of the black car is a little out of focus but it still does not appear to have a bulge that would identify it and on the red car the vinyl looks smooth. Also I am sure that there is a reason that it is unsafe but I just can't figure it out. What would be the issue? I have seen many cars over the years that have a similar placement of the gas filler door on both the left and the right. Thanks