I don’t believe this topic is covered in the 124 Spider Owner’s Manual, so by being familiar with the two pages copied from the MX-5 manual (shown below) regarding emergency access to the trunk, the knowledge just might come in handy some day when you are unable to access items in your trunk due to a dead battery, or an inoperable electrical trunk release. Apparently the cap, once exposed and unfastened, is attached to the same cable that actuates the phosphorescent mechanical button located on the rear trunk panel (near the trunk latch – see diagram to the right), and will serve as an alternate pull-handle to the federally mandated manual release for anyone trapped inside the trunk.
The first thought that comes to mind – in vehicles outside of the U.S., I wonder if this emergency release cable is still present, as I doubt that the interior manual release buttton is present. My guess is that it exists globally as a substitute for a key lock cylinder and linkages to unlatch the the trunk lid, because it is lighter and cheaper.
The second thought that comes to mind – can a person even fit in a 124 Spider trunk? Until I saw this picture of a young lady in the Miata trunk (which is even smaller than our trunk), I didn’t think so. 😉
MX-5 Emergency Trunk Access instructions, courtesy of Mazda