The 2003 Jeep Wrangler is part of the iconic SUV's long-running TJ generation. It is available in four trim levels: SE, X, Sport, and Rubicon. Motor options include a 2.4L four-cylinder producing 147 horsepower and a 4.0L inline-six generating 190 horsepower. A 5-speed manual transmission is standard, with a 4-speed automatic available. Significant for this model year is the introduction of the off-road heavy Rubicon trim, featuring a heavy-duty Dana 44 front axle, 31-inch off-road tires, and a transfer case with a greater low-range gear ratio representing Jeep's commitment to retaining the Wrangler's go-anywhere attitude. Inside, the Wrangler keeps things basic, though a CD player is included in the options list. Safety features include dual front airbags (an optional extra) and antilock brakes.