[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2009/images/10/29/cashforclunkers.jpg caption="White House fights back on Cash for Clunkers."]
NEW YORK (CNNMoney.com) - The Obama administration on Thursday lashed out at a prominent critic of its Cash for Clunkers program, arguing that the popular trade-in initiative helped give the auto industry and the economy a much needed boost in the past few months.
In a blog post on whitehouse.gov, the administration argued that a report on Clunkers by automotive Web site Edmunds.com "doesn't withstand even basic scrutiny" and is based on "implausible assumptions."
On Wednesday, Edmunds.com released a study that argued Cash for Clunkers did not have a great impact on the auto industry. The report said that 690,000 new vehicles were sold under the program last summer, but that only 125,000 of them would not have been sold without the Clunkers rebates.
As a result, the report said, the administration's economic claims for the program "have been rendered quite weak."