A day before Autobytel is expected to make its announcement, rival AutoWeb aweb is also set to officially announce a consumer-to-consumer auction service, according to sources close to the company. Company sources declined to comment. With this new channel, AutoWeb aims to virtually eliminate the risk of buying a used car online by offering a 72-hour money-back guarantee, a minimum three-month/3,000 mile limited warranty and factory or dealer quality certification. Consumers also get 48 hours to consummate the transaction. The used-car auction program would be first launched in California and subsequently rolled out across the country. Bumper to bumper The moves by both companies in the same week struck a familiar chord. Back in March, AutoWeb went public on March 22, four days before Autobytel debuted. Autobytel, however, was first to file for its initial public offering on Jan. 15, while AutoWeb filed for its IPO on Jan. 26.