GMC Sierra 1500 vs GMC Sierra 2500HD

The 2024 GMC Sierra 2500HD Denali Ultimate was a striking presence on the road, with its massive grille and imposing stature that rivalled even the largest vehicles on the highway. Finished in Onyx Black with an Alpine Umber tan interior, it rode on 20-inch aluminum alloys with gloss black inserts, exuding a menacing aura that commanded attention. The updated front bumper and grille assembly, along with standard LED headlights and taillights, added to its modern appeal. The Denali Ultimate trim offered a six-passenger Crew Cab with two cargo bed length options, and the versatile MultiPro Tailgate provided six configurations for enhanced utility.

In contrast, the 2024 GMC Sierra 1500 maintained its bold styling with a tall, flat hood and broad grille, distinguishing it from its Chevrolet Silverado sibling. The Denali and Denali Ultimate models featured a large chrome grille and available 22-inch wheels, while the AT4 and AT4X off-road models had a more understated appearance. Inside, the Sierra 1500's blocky design was complemented by a range of creature comforts, including a heated steering wheel, massaging front seats, and dual-zone automatic climate control. However, the interior materials, particularly the wood trim, felt dated and less premium than expected.

The 2024 GMC Sierra 2500HD Denali Ultimate was powered by a 6.6-litre Duramax turbocharged diesel V8 engine, delivering an impressive 470 horsepower and 975 lb-ft of torque. Paired with a 10-speed Allison automatic transmission and standard four-wheel drive, it offered robust performance for towing and hauling. The powertrain was refined, with smooth acceleration and minimal diesel clatter. However, its size dictated handling, making it less agile in tight spaces. The firm ride was suited for towing, but rough roads could unsettle the suspension.

The 2024 GMC Sierra 1500 offered a variety of powertrains, including a 2.7-litre turbocharged four-cylinder engine with 310 horsepower and 430 lb-ft of torque, and two V8 options: a 5.3-litre V8 with 355 hp and 383 lb-ft, and a 6.2-litre V8 with 420 hp and 460 lb-ft. The 3.0-litre Duramax turbodiesel inline-six provided 305 hp and 495 lb-ft of torque, excelling in towing capabilities. The 10-speed automatic transmission was smooth, and the chassis offered a comfortable ride for a full-size truck. Off-road variants like the AT4 and AT4X added specialized equipment for enhanced capability.

The 2024 GMC Sierra 2500HD Denali Ultimate featured a luxurious interior with full-grain leather seats, leather-covered door panels, and a microsuede headliner. The spacious cabin offered excellent stretch-out room and in-cabin storage, with wide, supportive front seats that were heated, ventilated, and equipped with a massage function. The rear seat provided limo-like legroom and headroom, accommodating three adults comfortably. Storage was ample, though accessing items in the front door pockets proved challenging.

The 2024 GMC Sierra 1500 offered multiple cab and bed-length configurations, with the crew cab providing ample space for rear-seat passengers. However, the rear seats were less comfortable for long trips due to hard cushions and awkward angles. The Sierra 1500 boasted higher cargo-box volume than its competitors and featured the reconfigurable Multi-Pro tailgate for added versatility. Towing capacity varied, with the diesel engine offering the highest capability. Payload capacity was competitive, though slightly less than its Silverado sibling.

The 2024 GMC Sierra 2500HD Denali Ultimate was equipped with a 13.4-inch touchscreen, a 15-inch head-up display, and a 12-speaker Bose audio system. It offered wireless Apple CarPlay and Android Auto, a wireless charging pad, and Google built-in features. The navigation system was precise, and the climate controls were conveniently placed. However, the steering-column-mounted gearshift stalk obstructed the view of the centre screen. Trailer aids and the ProGrade trailering system enhanced towing capabilities.

The 2024 GMC Sierra 1500 featured a 13.4-inch touchscreen with Google Built-In, offering a user-friendly interface with large icons and easy navigation. The system supported wireless Apple CarPlay and Android Auto, and retained analog controls for essential functions. The infotainment system was well-integrated, providing a seamless experience for both Android and Apple users.

The 2024 GMC Sierra 2500HD Denali Ultimate came standard with active safety features like automatic emergency braking, forward collision warning, and pedestrian detection. Optional features included adaptive cruise control, blind-spot monitoring, and a surround-view parking camera. The large side mirrors provided excellent visibility, enhancing safety during towing and manoeuvring.

The 2024 GMC Sierra 1500 received mixed results in IIHS testing but performed well in NHTSA evaluations, earning a five-star overall safety rating for crew cab models. Standard safety features included automatic emergency braking, lane-keep assist, and a rear-seat reminder. Optional features like adaptive cruise control and Super Cruise offered advanced driver assistance, with the latter providing hands-free driving capabilities.