6. Mercedes-Benz GL-Class
Mercedes-Benz’s sole entry on the list is its GL-Class SUV, a full-size model that’s been around since 2006. A three-row, seven-passenger vehicle, it shares the same unibody architecture as the M-Class, but is higher in the lineup. The second-generation GL just recently hit the market as a 2013 model year vehicle, boasting a bigger size, more luxurious amenities, and ton of new-generation technology.
Despite getting positive remarks in its testing, the reliability of the GL-Class suffered in several categories. Worse rankings were given for the Engine Minor, Transmission Major, Drive System, Fuel System, Electrical System, Suspension, Paint and Trim, Body Hardware, Power Equipment, and Audio System categories.