Aplaintiff sued an auto manufacturer for negligence after a car accident involving the plaintiff's car that was made by the auto manufacturer. sixty days after service of the complaint and 40 days after service of the manufacturer's answer that contained no counterclaim, the plaintiff filed a motion seeking to file an amended complaint adding a claim for strict products liability against the auto manufacturer stemming from the same incident. the statute of limitations for strict products liability claims expired one week before the motion was filed. how should the court rule on the plaintiff's motion?