You know that selling cars has gotten a tad problematic when a dealer is offering a two-for-one promotion. Bettenhausen Dodge in Tinley Park, Illinois, will sell you a brand-new 2008 Dodge Durango SXT and throw in a used 2008 Dodge Avenger at no extra cost. Here’s how it works: Purchasing the Durango at sticker price ($30,565) forgoes $11,947 in incentives, which goes toward the used Avenger, valued at $11,947.