Not a "detailed" or "showcar" undercarriage, but a sound original
one.
Notice the Light Beige transmission mounting plate. As on this car they
are supposed to be body color. They also have the last 3 digits of the
body number stamped on them.
Here you can see the bumpy texture of the factory undercoating.
An important location is where the trailing arm attaches to the
floor pan. Unfortunately it also happens to be a place where many cars are
rusted.
Above is a pretty good shot of a factory "weep dimple" designed
as a drain. One doesn't want to see these plugged or obscured with
undercoating added post-factory. This car exhibits factory undercoating.
The other side.
The rockers and jack ports are all great.
The "half-moon" cut-outs on the rear valence are a factory
feature.