Jeep Wrangler is a classic symbol of summer cruising and off-road rambling. The Wrangler is the icon of the Jeep brand, and there are no direct competitors for it. As Jeep says, there's only one. Headlining the 2003 Jeep Wrangler lineup is the Rubicon, which boasts a serious off-road suspension, a powerful 4.0-liter six-cylinder engine, a Dana rear end, and other changes, all designed to improve 4x4 capabilities. Essentially, it's a modified Jeep from the factory, making financing and preparation a turn-key deal for off-road enthusiasts. But all models benefit from upgrades that make them more comfortable, more convenient, more responsive, and more capable for 2003. A new four-speed automatic transmission is available on all models, eliminating the notoriously outdated three-speed automatic for much better response and improved fuel efficiency. Four-wheel disc brakes improve the stopping ability of all models. The base SE model gets a big boost in performance with a new, more sophisticated, four-cylinder engine. New features spice up the Wrangler's spartan cabin. Redesigned front and rear seats offer more room and are easier to work with. Redesigned exterior mirrors help reduce noise, vibration and harshness and are wider, offering a better view rearward. Built along Jeep's "Go anywhere, do anything" design philosophy, the new Rubicon is a 4x4 gem. After driving through Hell's Revenge, Cliff Hanger, and other challenging trails around Moab, I am happy to report that the Rubicon passes the off-road test with flying colors. Front and rear locking differentials, front and rear Dana model 44 axles and a 4:1 low-range transfer case give the "Ruby" trail capabilities far beyond those of the average SUV.