The new Wrangler gets a slightly longer and wider stance to help increase on-road comfort and off-road performance. The Wrangler still rides on solid axles front and rear and comes with a revised coil suspension. A new hardtop option has removable pannels. The legendary 4.0 inline 6 is replaced by the 3.8 V-6 which packs 205 horsepower and 240 lb.-ft. of torque.
source:http://www.autoweek.com/files/specials/2006_detroit/jeep/wrangler/pages/18.htm