COLMA, CA - JULY 31:  A sign advertising the 'Cash For Clunkers' program is displayed on a new car at Stewart Chevrolet July 31, 2009 in Colma, California. Federal lawmakers are seeking an additional $2 billion to keep the popular 'Cash For Clunkers' program going after the initial $1 billion in funding ran out after a week. Getty Images logo Getty Images 3 months ago

COLMA, CA - JULY 31: A sign advertising the 'Cash For Clunkers' program is displayed on a new car at Stewart Chevrolet July 31, 2009 in Colma, California. Federal lawmakers are seeking an additional $2 billion to keep the popular 'Cash For Clunkers' program going after the initial $1 billion in funding ran out after a week.