AutoBuyGuide.com gives you all the details of each 2010 Mercury Grand Marquis incentive program from the manufacturer and dealers. You may be throwing away thousands of dollars if you're not taking advantage of current incentive offerings! Popular 2010 Mercury Grand Marquis incentives used to entice new car buyers are interest-free auto loans. Mercury and its car dealers will utilize these cash, lease, and finance 2010 Mercury Grand Marquis incentives to lure consumers to buy specific vehicles that they may have overstocked or to help clear out last year’s models. Occasionally, they will run factory-to-dealer Mercury Grand Marquis cash incentives to encourage car sales.