Jeep introduces a new four-door version of its smallest SUV in the Wrangler Unlimited, which is available in five trims: X 2WD, X 4WD, Sahara 2WD, Sahara 4WD, and Rubicon 4WD. This five-passenger sport utility offers the three-piece Freedom Top and the Sunrider soft top, which boasts an open-air driving experience in less than 30 seconds. The Wrangler Unlimited also features a 205-hp 3.8L V6 engine, an electronic stability program, a 60/40-split fold-flat rear seat, and optional side impact airbags. Available options on this convertible SUV include power convenience features, remote keyless entry, a navigation system, MP3 capable radio, and the Sirius satellite radio system. The returning two-door Wrangler will be released later in the model year.