Los Angeles ? The owner of an RV dealership sued by Taylor Lautner over a customized vehicle challenged the “Twilight” star Monday to use his muscles instead of his lawyers to resolve the case.

Brent McMahon, who owns McMahon’s RV in Irvine, Calif., offered to compete in a push-up contest to settle the breach of contract lawsuit that Lautner filed Aug. 23 claiming the dealership failed to deliver a $300,000 RV on time for use as a dressing room on the set of the actor’s latest film.

McMahon and his attorney denied wrongdoing and said they will vigorously defend the case in court if Lautner, 18, doesn’t accept the challenge.

Lautner’s attorney Robert Barta said the challenge was indicative of problems with the dealership.

The dealership said Lautner’s camp had sought a $40,000 settlement to resolve the case, leading to the unorthodox proposal by McMahon. The 47-year-old businessman said if he won the contest, he would donate the settlement money to Children’s Hospital of Orange County.

Barta’s statement said the matter might be settled if McMahon made a $40,000 donation to a charity of Lautner’s choosing.