Bowers, this claim should have been alleged prior to the hearing on Defendants’ summary judgment, and we believe this undue delay is ample reason to find no abuse of discretion. However, considering the undisputed fact that the contract was breached prior to any of the other Defendants’ involvement with Hart and Superi- or, we also believe the amendment would be futile and a waste of time.
3. It was not abuse of discretion for the trial court to refuse to allow the additional business tort actions against the Bowers Defendants
Plaintiffs attempted to assert three new causes of action against the Bowers Defendants. 1. Conspiracy to breach a contract. 2. Interference with contractual relations. 3. Intentional interference with a business relationship. First, These claims are based on the same facts as the original inducement to breach the contract claim. Defendants’ actions, which were the underlying basis of the inducement claim, were considered by the trial court in Bowers Defendants’ Motion for Summary Judgment and found insufficient to state a claim for inducement. The Conspiracy and Interference claims would require the same basic show of facts that the trial court found lacking in its April 28, 1997 Order granting summary judgment. Thus, it would be futile to add these additional claims. The Court of Appeals opinion does not contain any suggestion that Plaintiffs should be allowed to amend their complaints; nor did this Court reverse the dismissal of any claims against the Bowers Defendants. Second, as with the conspiracy claim, all these claims could have, and should have, been pled prior to the Summary Judgment hearing. As such, Plaintiffs failed to show any abuse of discretion in the trial court’s refusal to allow these new claims against the Bowers Defendants.
B. Addition of New Defendants and New Causes of Action
1. European Motors
In their Third Amended Complaint, Plaintiffs attempted to, once again, add European Motors as a defendant in this matter. In its April 28, 1997 Order, the trial court had already refused to grant Plaintiffs’ leave to amend the Complaint to add European Motors as a defendant. In that Order, the court specifically stated that, just like the Bowers Defendants, European Motors was not liable as a matter of law for inducement of breach of contract. The Court of Appeals affirmed this finding stating that there was no reversible error in the trial court’s denial of leave to amend the Complaint. This determination became the law of the case. Plaintiff is, thus, barred from re-asserting the claim for inducement of breach of contract against European Motors.
Likewise, we find no abuse of discretion in the trial court’s failure to allow European to be added as a defendant under the newly averred causes of action, due to the undue delay of Plaintiffs and futility of the actions. As with Bowers, the conversion, conspiracy to breach a contract, and interference with contractual relations claims would be futile based on the court’s previous finding that the contract was already breached.
2. The Sonic Defendants
Plaintiffs also requested leave to amend their complaint and add Sonic Automotive, Inc. as an additional defendant. Against this new defendant, they asserted the same causes of actions already discussed: (1) conspiracy to breach a contract, (2) interference with contractual relations, (3) intentional interference with a business relationship, (4) inducement to breach a contract, and (5) conversion. These claims