The long wheelbase, four-door Wrangler Unlimited is available in two-wheel drive or four-wheel drive. Trims offered on the Wrangler Unlimited are X, Sahara (two- or four-wheel drive); or the Rubicon in four-wheel drive only. The standard 3.8-liter V-6 engine produces 202 horsepower, and the standard transmission is a six-speed manual with overdrive. An optional four-speed automatic with overdrive is available (standard on both two-wheel drive Unlimited trims). Electronic stability control with roll control, traction control, brake assist and hill hold control are standard on all Wranglers. The Sahara offers body colour flares, Infinity speakers, remote keyless entry, power window, security alarm and 18-inch wheels. The Rubicon features equipment that off-road enthusiasts usually add anyway, including heavy duty axles, front and rear electronic locking differentials, 32-inch BF Goodrich mud tires, sway bar disconnect system, rock rails and a heavy-duty transfer case with 4:1 low-gear ratio. The available Freedom Top three-piece modular hardtop allows panels to be removed above the driver or passenger. Other options include Dual Top Group, half doors, remote start system, front seat-mounted side air bags, and MyGIG infotainment system with navigation.For 2009, the Unlimited Rubicon receives power windows and power door locks with remote keyless entry as standard equipment. The 4-speed automatic becomes standard for the two-wheel drive Wrangler Unlimited.