* In most jurisdictions, a car is considered an antique if it's at least 25 years old. By this definition, a 1968 Plymouth Satellite is indeed an antique.
* Some organizations and insurance companies have stricter definitions. They may require a car to be significantly older or to meet certain criteria regarding originality and condition.
Therefore, while it's generally considered an antique car due to its age, the exact classification might vary depending on context.