NEW YORK - Claims in an ignition-switch defect class action involve both Old (presale) GM and New (post-sale) GM and are therefore subject to stay, the bankruptcy judge overseeing General Motors Corp.'s (GM) Chapter 11 case ruled July 30 (In re: Chapter 11 Motors Liquidation Co., et al., f/k/a General Motors Corp., et al., No. 09-50026, S.D. N.Y. Bky.).