Off-Road Truck Comparison: 2025 GMC Sierra 1500 AT4 vs 2025 Ram 1500 Rebel

Duluth drivers who love off-roading know there are plenty of great trails nearby. Whether you head out to explore the Chattahoochee National Forest or go to a trail closer to home, you’ll want a truck that can handle whatever Mother Nature can dish out. At the same time, you’ll need your truck’s capabilities to get your tough jobs done during the week. In that regard, many truck brands offer full-size models that try to give you the best of both worlds.

Two of the leading models are the 2025 GMC Sierra 1500 AT4 and the 2025 Ram 1500 Rebel. In comparing the two, you will inevitably realize that looking for a GMC Sierra 1500 for sale near Duluth is the way to go. This is because you get more “truck” for your money when you choose the Sierra 1500 AT4—and Duluth drivers who want his model should come to Jim Ellis Buick GMC Mall of Georgia, as we have the Sierra 1500 AT4 you want with the features you need.

GMC’s Better Engine Options

GMC and Ram have equipped their respective trucks with a powertrain designed to give you the best performance their engineers could muster. The key difference is that the GMC Sierra 1500 AT4 is also available with another engine, giving you more choices for your truck’s configuration.

The standard engine on the Sierra 1500 AT4 is a 3.0-liter Duramax Turbo-Diesel with a ten-speed automatic transmission; it delivers up to 305 hp at 3,750 RPM and 495 lb-ft of torque at 2,750 RPM. You can also opt for a 6.2-liter EcoTec3 V8 gas engine on the Sierra 1500 AT4; it also comes paired with a ten-speed automatic transmission, and it can provide up to 420 hp at 5,600 RPM and 460 lb-ft of torque at 4,100 RPM.

In contrast, the Ram 1500 Rebel has only one engine option: a 3.0-liter turbocharged I-6 gas engine with an eight-speed automatic transmission. This engine provides up to 420 hp at 5,200 RPM and 469 lb-ft of torque at 3,500 RPM. Ram does not offer either a V8 gas engine or a diesel engine option on the Rebel.

GMC’s Better Fuel Economy

The GMC Sierra 1500 AT4 will provide better fuel efficiency than the 2025 Ram 1500 Rebel, primarily because the GMC has a turbo-diesel engine rather than the Rebel’s gas engine. This is good news for Duluth drivers who are looking to save money on fuel.

When you choose the Sierra 1500 AT4 with the turbo-diesel engine, you will get up to 24 MPG combined. This is better than the 19 MPG that you will get in a Ram 1500 Rebel. If you plan on using your truck for local driving, then the difference is even more significant, as the Sierra 1500 AT4 provides 22 MPG in city driving, while the Ram 1500 Rebel only gets 17 MPG in these conditions.

GMC’s Better Towing Strength

Regardless of which engine you choose for your 2025 GMC Sierra 1500 AT4, you will get significant trailering capability. While the standard turbo-diesel will give you the ability to tow 13,200 lbs on your AT4, opting for the available 6.2-liter gas engine will still allow you to tow up to 13,000 lbs.

The 2025 Ram 1500 Rebel does not even come close in this regard. Drivers with this truck can only tow up to 11,500 lbs—over 1,000 lbs less than the Sierra 1500 AT4. As a result, you will be able to get more jobs done in a GMC than in a Ram, and you can also tow a heavier camper or recreational vehicle when you go camping.

GMC’s Better Hauling Capabilities

One thing that the 2025 Ram 1500 Rebel does provide over the 2025 GMC Sierra 1500 AT4 is the amount of payload that the truck can carry. The Rebel can carry up to 1,900 lbs of cargo in its bed box, while the Sierra 1500 AT4 tops out at 1,820 lbs—only an 80-lb difference. However, if you dive deeper, you will see that the GMC provides better overall cargo hauling capabilities.

While the Ram 1500 Rebel comes equipped with a standard 5.6-foot bed box, GMC offers two different sizes on the Sierra 1500 AT4: The short bed measures 5.8 feet, while the standard bed is a larger 6.6 feet. In addition, the Sierra 1500 AT4 provides more space; if you go for the short bed, you will have 62.9 cu.ft. of cargo space, while opting for the standard bed gives you 71.7 cu.ft. of space. This is significantly more than the 53.9 cu.ft. of space on the Rebel.

The GMC Sierra 1500 AT4 also has more cargo hauling functionality. This truck has its brand’s MultiPro tailgate, which has six different functions. For example, it allows you to turn your tailgate into a convenient step into the box or into a workbench—a unique feature that you won’t find on the Ram 1500 Rebel.

GMC’s Better Off-Road Features

Both of these trucks are built for off-roading. They each have a 4×4 drivetrain that uses a transfer case to deliver the right amount of power to each wheel depending on road and terrain conditions. In addition, each truck has skid plates to shield vital parts of its undercarriage, like the transfer case, fuel tank, and oil pan. This will give you peace of mind that your truck is protected from rocks, logs, ruts, and other obstacles.

While each is capable of giving you an enjoyable time off-road, the GMC Sierra 1500 AT4 provides more capability than the Ram 1500 Rebel. This is mainly because the AT4 has better ground clearance than the Rebel (at 11.1 inches compared to 9.7 inches). In addition, you get a choice of tires on the GMC Sierra 1500 AT4 that you don’t get on the Ram 1500 Rebel. The Ram comes with a set of Goodyear Wrangler DuraTrac all-terrain tires, while the GMC rides on a set of Goodyear Wrangler Trailrunner all-terrain tires, though you could also opt to get a set of Goodyear Wrangler Territory mud-terrain tires instead; this allows you to better equip your truck for the conditions you expect to encounter.

GMC’s Better Touchscreen Suite

If you are like most Duluth drivers, you probably love the infotainment system on your truck. It will not only keep you connected so you can make hands-free calls and texts, but it will also give you entertainment that makes long drives more enjoyable. Both the 2025 GMC Sierra 1500 AT4 and the 2024 Ram 1500 Rebel have an advanced infotainment system.

The GMC infotainment system on the AT4 and the Uconnect system on the Rebel provide wireless connectivity for your smartphones using Apple CarPlay and Android Auto. This will come in handy, since you can use the system even if you have left the charging cables at home. However, the GMC system has a larger 13.4-inch touchscreen (compared to the 12-inch one on the Ram). In addition, the Sierra 1500 has a standard wireless phone charging pad, whereas you will have to pay extra to add one to your Ram 1500 Rebel. Using wireless connectivity can deplete the charge on your phone’s battery fairly quickly, so a wireless charger is a great feature to have, especially when you are going on a long drive off-road.

Make Your Next Truck a 2025 GMC Sierra 1500 AT4

When you head out on an off-road adventure, you don’t want to leave anything to chance; you want to know that your truck has the capability you need to handle the toughest trails. It also pays to have a truck that is versatile enough to take care of the towing and hauling skills you may depend on when using your pickup for daily use. The 2025 GMC Sierra 1500 AT4 is the right truck for Duluth drivers like you who want to have it all in an off-road pickup truck.