(1) Where an action is brought against two or more persons as concurrent wrongdoers, each defendant shall have the right to present evidence against the other or others.
(2) Where an action is brought against two or more persons as concurrent wrongdoers and the plaintiff obtains judgment and the judgment is satisfied by one of such wrongdoers, another of such wrongdoers may appeal against the judgment notwithstanding that it has been satisfied.
(3) Where an action is brought against two or more persons as concurrent wrongdoers and the plaintiff obtains judgment and one defendant appeals against the judgment, another defendant may, upon giving such notice as may be required by rules of court, contest the appeal as respondent.
(4) Where an action is brought against two or more persons as concurrent wrongdoers and the plaintiff succeeds against one and fails against another, the unsuccessful defendant may appeal against the judgment in favour of the successful defendant.