The 2015 GMC Yukon XL Denali 4WD with the 6.2-liter V8 is a full-size, luxury-tilted powerhouse built for those who want big SUV capability without compromise. It delivers 420 horsepower and 460 lb-ft of torque, which gives it strong acceleration for a vehicle of its size, excellent towing capability, and the muscle to haul heavy loads or large trailers. The 4WD version comes equipped with a two-speed transfer case and a locking rear differential, enhancing its off-road and adverse-weather performance. The cabin is plush and spacious, with seating for seven, high-end materials, lots of sound deadening, and upscale features throughout. For its size, it rides impressively composed, especially over highway miles, yet still swallows bumps with confidence. Cargo space in the XL body is generous—ideal for hauling gear, luggage, or anything else that won’t fit in smaller SUVs. Fuel economy isn’t its strong suit, but when you’re getting luxury, power, space, and prestige, that’s a trade many are more than willing to accept.