My '87 Turbo does, but it was a fairly rare option on the 740s. You can
look for the ABS modulator under a wood cover under the carpet in the
side of the trunk, but it's easier to just get out on an empty road,
preferably wet, get it up to about 25 mph and slam on the brakes. If it
has ABS you'll hear it chatter and feel in the pedal.
