We made mistakes,” GM's Wagoner told the Senate Banking Committee, citing a failure to make the company's operations more flexible and move faster into the U.S. market for smaller, more fuel-efficient vehicles. In a trade journal ad, GM apologized for violating Americans' trust by, among other things, letting quality lag behind industry standards and designs to become “lackluster,” skewing its product mix toward trucks and SUVs and agreeing to “unsustainable” employee-compensation plans.