The Wrangler is available in six models: SE, X, Sport, Rubicon, Unlimited, and Unlimited Rubicon. A 2.4-liter four-cylinder engine comes standard with a six-speed manual gearbox. A 4.0-liter six-cylinder engine is available, which comes with a six-speed manual or four-speed automatic. All Wranglers come with a fold-down windshield, removable doors and top, and a weatherproof interior. For 2006, the Jeep Wrangler gets more heavy-duty equipment for the base Unlimited model and the Golden Eagle package is also brought back.