Great drivetrain and the Pro-4X comes fully equipped.
I had the 2005, 68k miles, CrewCab, 4.0L, V6, 4x4, 6 spd man for one week, then the ignition module burned up, leaving me and my family stranded one evening while out to dinner. One week later and I had a working Frontier again. This is my 3rd Frontier, and despite this problem, I dont regret my purchase. It feels considerably bigger than the prior year models, but is only 4 inches wider. Comfort and noise levels are great for this 4.0L V6. Big increase in HP and Torque from prior year models is very noticeable. Fuel economy is approx 20mpg in town. Having a 6 spd manual, at interstate speeds, as long as your not trying to break the land speed record, the mpg is a little better than that. It has a spray-in bed liner (stock), and that cargo tracking system, which is great for securing down loads. 8 cup holders, not 6 (as advertised), 3 car-lighter power outlets, one of which is 'power-on' even when car is turned off. I live in the Chicagolan area, and for the snow, the 4wd works great, even at slow speeds while turning corners. Front passenger seat folds forward flat, having a firm flat surface, if you need to use it as a desk or table. 2 glove-boxes, one of which is not obvious. The Nissan Frontier is also made in the USA, so you dont have to feel that you must buy one of those big American trucks in order to 'buy american'.
All around great pickup truck. My boys got into a broadside collision that crushed the passenger side and spun the truck around 180 degrees. The other car was totaled. The protection of the cab and the side window airbags allowed my boys to walk away without a scratch. This truck saved their lives. After the body shop repaired/replaced the damage it again looks and drives like new. Incredible!