Scali, McCabe, Sloves Inc., the New York advertising agency, admitted running over its feet with a misleading Volvo commercial and resigned its $40 million account with the Swedish carmaker.

Scali said Tuesday's resignation was due to questions regarding the production of the so-called monster truck Volvo commercial in Austin, Texas. Last week, the state attorney general accused Volvo of doctoring its own car to survive a crushing by a giant truck while rigging its competitors to fail."We did not resign the account over culpability, we resigned because we are ultimately responsible," said Chairman Marvin Sloves. "We don't want Volvo hurt any more than it has been."

Volvo withdrew the monster truck campaign after extras at the filming complained the cars used in the advertisement had been modified.