A larger crew-cab model and available cylinder deactivation top the list of 2006 changes to Dodge's large pickup. This report covers the half-ton Ram 1500 model. It offers a 2-dr regular cab and two 4-dr crew cabs--the Quad Cab and the new Mega Cab. The Mega's cab is 20 inches longer than the Quad Cab's. Regular cab and Quad Cab offer 6.3-ft- and 8-ft-long cargo beds; Mega Cab uses the 6.3-ft bed. Regular cabs seat up to three passengers, the others up to six.

Ram is available with three engines: a V6, a 4.7-liter V8, and Chrysler's 5.7-liter Hemi V8. In all models except Mega Cab, the Hemi now has Chrysler's Multi-Displacement System, which saves fuel by deactivating four cylinders while cruising. The V6 and 4.7 V8 are available with manual or automatic transmission, the Hemi V8 with automatic only.

ST, SLT, and topline Laramie trim levels are offered. All Rams are available with rear-wheel drive or with 4-wheel drive that should not be left engaged on dry pavement. Optional for SLT and Laramie trim levels is all-wheel drive. The 4WD and AWD systems include low-range gearing. Rear ABS is standard; 4-wheel ABS is available. Curtain side airbags that cover all seating rows are optional. Also available: power-adjustable pedals, wireless cell phone link, DVD entertainment, and navigation system. Quad Cabs are available with power running boards.

Ram also offers high-performance SRT10 regular cab and Quad Cab models. These rear-drive Rams have the Dodge Viper's 500-hp V10 engine, sport suspension, 22-inch wheels, unique trim, and sport seats.