Nissan's Endurance V8 is a modern design with double overhead-cams and 32 valves. Dimensional changes to the air cleaner and intake manifold boost power and torque for '07, from 305 to 317 horsepower, and from 379 to 385 pound-feet of torque. Better still, the Titan's engine delivers 90 percent of that peak torque across a wide band down to low rpm. Torque, that force that propels you from intersections and pulls heavy trailers up long grades, is particularly important when towing and hauling. Fuel economy remains nearly the same as last year, with both 2WD and 4WD models now rated 14/18 mpg. Regular unleaded is recommended.

The five-speed automatic transmission is equally responsive, quickly downshifting whenever needed. With five gears to choose from, it can always find an appropriate ratio for smooth, rather than abrupt, downshifts. The transmission features a Tow/Haul mode to reduce unnecessary shifting and heat buildup. Towing capacity is 9,500 pounds, which is more often seen in heavy-duty 3/4-ton trucks, not light-duty 1/2-ton trucks like the Titan

Handling is quick and agile. It's easy to drive the Titan smoothly or quickly or both at the same time. Ride quality is good in most situations, though we found a rippled, well-traveled section of I-405 in Los Angeles that generated an uncomfortable harmonic in a 4WD model. A 2WD Crew Cab we drove seemed to offer a better ride.

Braking is accomplished with four-wheel discs. It's easy to modulate the brakes for smooth stops in everyday driving. Anti-lock brakes come standard with electronic brake-force distribution and Brake Assist. (ABS helps the driver maintain steering control in a skid. EBD improves balance and stopping power by apportioning the braking force to whichever tires are getting the best grip. Brake Assist helps ensure full braking potential in a panic stop.)

4WD models offer shift-on-the-fly capability through an electronically controlled part-time transfer case. Simply turn a knob to shift from two-wheel drive to four-wheel drive. This can be done while driving. To engage the 4WD low range, however, you must come to almost a full stop, and then push the knob in and turn it. The low creeper gear keeps steep descents in the comfort zone. An off-road package includes an electronically activated locking rear differential to help the Titan slog through the toughest conditions.