Some car buyers have a handy excusefor not haggling over price. Not only is itdemeaning, many consumers say, butthey think (or are told) that the dealerwon't budge because of incentivesalready built into the cost. In fact,according to a recent survey, more than a third of new-car buyerspay the price the dealer asks for withouta quibble. But the same survey alsoshows that buyers who do bargain pocketan average saving of about $1700. Rebates and incentives come from thecarmaker and don't affect the dealer'sprofit margin. To bargain effectively, useWeb sites like Edmunds (www.edmunds.com) to find out the dealer cost on thecar, and then set a target purchase priceat 4% to 8% above that.