General Motors announced on Apr.1, "Zero to Sixty," which it said is the most sweeping retail marketing program in its history.

Effective April 1 through April 30, GM says it is offering interest-free financing for 60 months on the purchase of any new 2003 GM model Cadillac, Chevrolet, Saab, Saturn, Pontiac, Oldsmobile, GMC and Buick. Additionally, GM is offering very competitive cash rebates of up to $3,000 on most models.

"We are offering consumers our most compelling and simple offer ever," said John Smith, group vice president of GM North America vehicle sales, service and marketing.

"While industry sales have held up relatively well, we have seen some weakening in consumer confidence. We believe it's the right time to lead the industry with this exceptional offer, which will jump start the spring selling season and give consumers more confidence to purchase a GM vehicle right now," Smith added.