1. Whether the U.S. Court of Appeals for the District of Columbia Circuit erred by holding, in direct conflict with five state courts of last resort, that an automobile manufacturer's compliance with a federal motor vehicle safety standard that permits, but does not require, installation of airbags in passenger vehicles preempts state common law claims that an automobile was defectively designed because it lacked an airbag?

2. Whether the D.C. Circuit erred by holding that, because this Court engaged in implied preemption analysis in Freightliner Corp. V. Myrick, 514 U.S. 280 (1995), the lower courts are free to disregard the limitations on implied preemption most recently emphasized in Cipollone V. Liggett Group, Inc., 505 U.S. 504 (1992), to find that a Federal motor vehicle safety standard promulgated pursuant to the National Traffic and Motor Vehicle Safety Act of 1966, 15 U.S.C. 1381-1431, impliedly preempts common law claims, even thought the Act expressly provides that ""compliance with any Federal motor vehicle safety standard … does not exempt any person from any liability under common law''?