General Motors is using "monetary muscle" to rebuild its US vehicle market share by extending current offers that require no down payments and interest charges and defer monthly payments for three months on new cars and trucks, the Detroit News reported. The Detroit News, citing an anonymous GM source, who said GM's 'Zero Zero Zero' programme offering 0% interest rates, no down payment and no monthly payments for 90 days began on October 10 with an October 31 expiry date but would now be extended until January 2 on all remaining 2002 models and most 2003 models financed with 36- and 48-month loans.