While not as racy as the contemporary GL-Class or in the running to win any awards for aerodynamic efficiency, there is no denying the ability of the G-Class Benz to make a lasting impression. Big, boxy and about as modern as a dial-up phone, the 2009 Mercedes-Benz G550's military roots serve it well, especially when it comes to off-road capability. Aftermarket manufacturers have a wide assortment of chrome accents and big wheels, allowing the discerning G550 driver to personalize his or her vehicle in ways the original designers could never have imagined. But be warned: Though it competes with luxury giant Land Rover's Range Rover, the G550 does not return the same refined ride or quiet cabin.