Only a short while ago, the idea of a 'muscle truck' was limited to watching Bigfoot or Gravedigger pummel junk cars at a monster truck rally. But, then, with trucks like the GMC Syclone in the 1990s, the Ford SVT Lightning, and the Dodge Ram SRT-10 in the 2000s, we all could get behind the idea of a fast truck. This 2018 GMC Sierra Callaway SC560 Supercharged 4x4 we have for you today may be the pinnacle of what the perfect muscle truck could, and should be. One look at its beautiful Dark Slate Grey exterior, complete with its Callaway front, tailgate, and grille emblems, and it's easy to see why. Sitting high up on its Rocky Ridge suspension, this GMC's aggressive demeanor screams, "Get out of my way!" And with only 64,230 actual miles on the odometer, this muscle truck won't be atrophying anytime soon. Step inside this Sierra's expansive interior, and you'll be treated to an enchanting mix of supple leather and advanced technology featuring carbon fiber trim, Rocky Ridge-branded all-weather floor mats, RR Callaway dash plaque, and a HyperTech calibration system. A huge center console offers plenty of storage, separating a pair of power and heated bucket seats. Power mirrors, windows, locks, and a sunroof, along with a telescopic steering wheel, cruise control, air conditioning, a backup camera, and an AM/FM/AUX/Satellite/Bluetooth infotainment center, offer all the modern amenities anyone could want in a late-model truck. Under the hood, we find a numbers-matching and ridiculously powerful 6.2-liter V8 engine. Upgraded with a Gen 3 Callaway supercharger system, this mighty motor features a 2.3-liter triple-cooled intercooler, high-flow Callaway "Honker" air intake system, low-restriction Callaway stainless steel exhaust setup that utilizes matching stainless steel exhaust tips that exit just before the rear wheels. Thanks to that blower and its accessories, this beastly truck pumps out an impressive 560-horsepower and 553 pound-feet of torque. That power is then routed through GM's 8L90E eight-speed automatic transmission before being sent out to either the rear wheels or all four corners, should four-wheel drive be engaged for maximum traction. HIGHLIGHTS: 64,230 Actual Miles Supercharged 6.2 Liter V8 560 HP 553 LB FT Gen 3 Callaway Blower 2.3 Liter Triple Cooled Intercooler Callaway Honker Air Intake Callaway Stainless Exhaust Side Exit Exhaust 8L90E Eight Speed Auto Four Inch Rocky Ridge Lift Kit Callaway Badging Power Everything AM/FM/AUX/CD/Satellite Bluetooth Heated Seats Sunroof Carbon Fiber Trim Rocky Ridge Floor Mats HyperTech Calibration One Owner Callaway Documentation Original Window Sticker Owner's Manual This 2018 GMC Sierra Callaway SC560 Supercharged 4x4 rides on a factory suspension that has been lifted via a four-inch Rocky Ridge Suspension Kit. Huge 20-inch Callaway performance wheels shod in 35-inch all-terrain tires. Whatever your goals with this Callaway happen to be, whether that's taking on the Baja or just looking good in the Home Depot parking lot, there is no doubt you'll achieve them behind the wheel of this muscle truck. Call today!