In US automotive parlance, a track rod or a track bar, is a specific kind of
link between a solid rear axle and the body. It runs parallel to the rear
axle.

Either I haven't seen one of those or it's what I would know as an anti-roll
bar.

yup, or stabilizer.

I think an anti-roll bar connects two wheels with a spring which
is pivoted against the chassis, with the intent to minimize their
relative-to-the-chassis differential motion.

Track rods are relatively primitive linkages to keep live axles in
the same county as the rest of the car. We've all seen them, but
they're so obvious they're easy to ignore.

Speakers have interesting suspensions. Microphone suspensions are
PFM. But cars have the real flavor of danger....

Chris Hornbeck