The build and price configurator for AT4 trimmed versions of the new Sierra is now online. Let’s dive in for a look at this factory-lifted off-roader from The General.

We’ve already taken a drive of the new Sierra but were left with a few questions about pricing and availability of different options packages, especially on the trim in which we’re most interested – the AT4.

The AT4 sets an opening price of $53,200 plus freight. For that sum, buyers net themselves a 4×4 truck powered by the revised 5.3L EcoTec3 V8 making 355 horsepower and 383 lb-ft of torque backed by the eight-speed automatic. This is the Dynamic Fuel Management (DFM) version of the 5.3L, meaning it can switch off different combinations of cylinders in a bid to save on fuel. That’s in contrast to the Active Fuel Management (AFM) motor that’ll be found in lesser Sierras, an engine which can cut itself down to four cylinders but not, say, two or seven or whatever number in between.

Checking the box for the hand-of-god 6.2L V8 cranks the base price to $55,695. For their extra cheddar, one will find themselves in command of 420 horses and 460 lb-ft of twist, not to mention a dandy sounding exhaust note. For the sake of $2495, buyers shouldn’t even hesitate – get the 6.2L, do not pass Go, do not collect $200. This also upgrades the transmission to GM’s 10-speed box.

Without selecting any additional options, the AT4 boasts GMC’s new MultiPro tailgate, LED lamps front and rear, heated and ventilated front buckets, heated rear seats, and a trailer brake controller. Naturally, we’re keen on the off-road kit which includes a 2-inch factory lift, Rancho monotubes, skid plates, and a locking rear diff.

If you want any color other than black or white, be prepared to open your wallet. Blue, brown, red, and various shades of grey cost $395 or $495. All AT4s will have a black interior with tan accent stripes.

While GMC does technically list a bunch of different option packages, selecting one generally means selecting most of them. Choosing the Technology Package, listed for $1875 and imbuing the truck with the neato camera rearview mirror and heads-up display, forces buyers to also take Driver Alert Packages I and II, bumping the price by $5110. Ouch. Those two Alert Packages add all manner of active safety nannies and satnav.

The AT4 Premium Package is available on its own for $2780. Choose that, and one will find themselves with an AT4 bearing satnav, power sliding rear window, Bose sound, and parking assists. Pressure monitoring for trailer tires is included too. A better spend is the AT4 Preferred Package which bundles most of that gear, less the trailer tire tech, for a reasonable $1420.

In a superb piece of decision making, GMC allows buyers to opt for the 18-inch 275/65 Mud Terrain Goodyear Wrangler DuraTrac tires without having to buy anything else. This $295 option should be taken by anyone buying an AT4. The trailer tire pressure monitoring, mentioned above as part of a package, is also apparently available as a stand-alone for an astounding $65. Get it.

Our pick for a well-equipped AT4 that doesn’t break the bank? That would be the model shown above, with the no-charge Onyx Black paint and three options: Duratrac tires, trailer tire pressure monitoring, and the mighty 6.2L V8. It rings the bell at $57,550 including freight.

Naturally, we wanted to find out how expensive an AT4 could get, an exercise which resulted in the truck you see below. Every option, including the most expensive color and a cat-back performance exhaust system for the 6.2L, brings its Monroney to $69,380. Keep in mind those 20-inch wheels bin the Duratracs.

How would you spec your AT4? Check out the configurator at GMC’s website and let us know in the comments.