Relatively unchanged for 2009, the rear-wheel-drive Mercury Grand Marquis sedan features a 4.6L V8, coupled to a four-speed automatic transmission, that produces 224 hp and 275 lb-ft of torque, providing plenty of acceleration under normal driving conditions. Fuel economy is predictable at 15 mpg city/23 mpg hwy and 18 mpg combined. Grand Marquis safety features include antilock disc brakes, traction control and front-seat side airbags; unfortunately, stability control and side-curtain airbags are not offered. Most notably, the Grand Marquis has a wide, spacious interior that can seat up to six passengers easily. The ample trunk boasts 20.6 cubic feet of space, enough room for a whole set of luggage or several sets of golf clubs. Based on traditional design, the full-size Grand Marquis sedan is equipped with controls and instruments that are simple and easy to use but perhaps not as ergonomic as more modern counterparts. Standard equipment includes keyless entry and exterior keypad entry, automatic climate control and leather upholstery.